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A Complete Guide To MTB Rear Shock Mounting Hardware

Mountain Bike Rear Shock Mounting hardware components layed out on the floor

Introduction to MTB Rear Shock Mounting Hardware

    In order for a rear shock to properly fit on your mountain bike, it needs the right mounting hardware. Mounting hardware is one of those things that often causes people to overthink it but in-fact, it’s quite simple. This blog has three sections:       1. What is mounting hardware?       2. What size hardware do you need?           2a. Using the internet to determine the size you need           2b. How to measure mounting hardware yourself     3. How to remove and install mounting hardware?           3a. How to remove mounting hardware           3b. How to install mounting hardware If you already know what mounting hardware is and just need help with sizing and install, feel free to skip ahead to the sections applicable to you.

Watch the video or read on!

What Is Mounting Hardware?

Fox DHX2 mountain bike rear shock with no spring on the floor

A new shock with empty eyelets

    When taking a look at a brand new, aftermarket rear shock , you’ll notice that there’s an open hole on each end. These are known as eyelets. If I try to install this shock on a bike, it won’t fit as the space in the frame is wider than the shock eyelet itself, and the bolt is way too small for the eyelet. To make it fit properly, you’ll need mounting hardware.

Simply put, mounting hardware is just an adapter to make a rear shock’s eyelet fit properly in a frame, and every frame uses different sizes.

Mountain Bike Rear Shock Mounting hardware components layed out on the floor

Mounting hardware is made up of a few bits

Generally speaking, mounting hardware consists of:     - A bushing that presses into the shock eyelet     - A center sleeve     - An o-ring on each side     - Spacers that cover the exposed part of the installed center sleeve     And here’s how it looks fully installed:

Mountain Bike Rear Shock Mounting hardware components installed a Fox Float X2 rear shock

A shock with Fox mounting hardware installed

          Trunnion style shocks are super common these days, which only have one open eyelet. The other end bolts directly into the frame. Therefore, trunnion shocks only require mounting hardware on the open eyelet end. Also, some frames use an “open eyelet” design. Frames with an open eyelet design use a fixing bolt, which is the same size as a shock eyelet, therefore they do not require any mounting hardware.

2022 Fox Float X Mountain bike trunnion rear shock on the floot

A trunnion style shock

    Now let’s take a closer look at what makes up mounting hardware. There are two types of inner bushings, either metal or poly. The metal ones are most commonly used in RockShox mounting hardware, and the poly or “IGUS” bushings are most commonly used in Fox and Marzocchi mounting hardware.

Detail of poly IGUS and metal du mtb rear shock mounting hardware bushings

The two types of bushings; poly (IGUS) and metal

          Now, remember when we talked about that open shock eyelet?     The size of that eyelet is standard across mostly all modern shocks including Fox , RockShox , Marzocchi , DVO, and more. This means mounting hardware is 100% cross compatible between all of these shocks. You can use RockShox mounting hardware in a Marzocchi shock, or use Fox mounting hardware in a DVO shock, and so forth. The only exceptions are Cane Creek shocks from model year 2016 and older, and Ohlins shocks from model year 2017 and older. These shocks used their own eyelet sizing. If your shock falls into one of those groups, you’ll need specific hardware from Cane Creek or Ohlins to fit.

Detail of a mountain bike rear shock open eyelet

The standard open shock eyelet

  If you’re reading this, you’re likely in one of three scenarios. Scenario One. You have a brand new, bare frame without a shock and you’re installing a shock on it. In this scenario, you’ll just need to purchase new mounting hardware since you don’t have any. Scenario Two. You’re buying a second shock so you can have a spare in case your current shock blows up before race day. Alternatively, you want to have two different styles of shocks to swap between depending on where you’re riding. For example, you might have one air shock for longer pedals and one coil shock for gnarlier terrain and shuttle days. In this scenario, it’s easiest to buy a new set of mounting hardware for the new shock. This is much easier than having to fiddle with removing and installing the hardware each time you want to swap out the shocks. Trust me, mounting hardware is cheap and this will save you lots of time. Scenario Three (which is the most likely scenario). You are replacing your bike’s current rear shock with a new one. Maybe you’re doing an upgrade, going from air to coil, or because your shock is damaged and needs replacement. In this scenario, we recommend purchasing new mounting hardware to make install super easy, especially if your current hardware is old or worn out and needs to be replaced anyways. Alternatively, you can uninstall your current shock’s mounting hardware, if it is not too worn out, and install it in the new shock.

What Size Mounting Hardware Do I Need For My Rear Shock?

    All frames use different sizes of mounting hardware. This isn’t frame size specific, just specific to the year, make and model. For example, a 2017 Specialized Enduro uses different hardware than a 2020 Transition Sentinel, but a Small 2020 Transition Sentinel uses the same size as an XL 2020 Sentinel.     This means that you’ll need to get the exact size of mounting hardware that your frame requires for proper fitment. Mounting hardware has two labeled dimensions. m8x30 is a common size to use for an example.     M 8 is the outer diameter of the frame bolt that goes through the shock eyelet. Generally you’ll only see this measurement be M6, M8 or M10. The other number, 30 in this case, is the width of the entire hardware. This number can range from 15 millimeters all the way up to about 70 millimeters.

MTB Rear shock mounting hardware sizes explained

          But, how do you figure out what size hardware do you need for your bike? Well, there’s two methods.

Method #1: Use The Internet     Our website has a shock mounting hardware database which doesn’t have every bike ever made on there, but we have most modern, popular bikes. This database is a constant work in progress and the information is laid out simply. Apart from listing which size mounting hardware you will need, the database also tells you what shock size the bike uses, and says "TR" for bikes that use a trunnion shock or "Open Eyelet" for bikes that use that just use that design. We recommend checking that database first.

The Lost Co MTB rear shock mounting hardware database

The database on our website

The Lost Co MTB rear shock mounting hardware database

"Trunnion" and "Open Eyelet" labels

    But, if you don’t see it on our website, just open a new tab.     Let’s say you have a current model year Santa Cruz Hightower. Simply go to the Santa Cruz Hightower product page, scroll down to the specs and you’ll see they list the shock mounting bushing sizes. It shows the front uses "20x8mm" and the rear uses "30x8mm" which is “Bearing Compatible” . Although it says “Mounting Bushing” that is merely another way of saying “mounting hardware”. Rather than saying "m8x30" it says " 30x8mm" - again, the same thing.

Santa Cruz Hightower mounting hardware sizes

The labels on Santa Cruz's website

    So, this frame’s bolt that is installed through the shock eyelet has an external diameter of 8mm, and the width of the frame where the front end of the shock sits is 30mm, while the rear end is 20mm. So you would need to buy two sets of hardware: m8x30 and m8x20.

    Depending on the brand or store, it could be labeled as 30xm8, 8mm x 30, or m8x30, but they all mean the same thing. Further, you'll notice it says “Bearing Compatible”. Some mounting hardware uses bearings in the hardware for less stiction in the suspension, and this frame is compatible with that. Run it if you’d like!

    If your bike isn’t the current newest model, look for a bike archive on the brand’s website. Brands like Transition and Santa Cruz are great examples which show all specs of older bike models including shock hardware sizes

Transition bikes archive

Transition Bike's Archives

      If a bike company’s website doesn’t list the hardware size, look for an exploded view diagram or user’s manual of the bike or frame. You can often find that information on the bike product page or in the service and tech support section of a company’s website. We often find mounting hardware sizes for brands like YT in the exploded view diagrams in the "downloads" section of their website.

    If you can't find the mounting hardware sizes listed anywhere, you can always call the bike brand directly and ask them.     But, if ALL of that fails you and the bike brand doesn't know, then it's time to take matters into your own hands...

Method #2: Measure Your Mounting Hardware Yourself     Grab some calipers, or a fine ruler with millimeters, and measure your current shock’s installed mounting hardware or measure the frame and bolt. If you grab the shock with hardware installed, simply measure the internal diameter of the hole where the bolt goes, and then measure how wide the mounting hardware is from side to side.     I just measured my hardware, and the bolt hole is 8 mm and the hardware measures 20 mm from side to side. So I would need to purchase m8x20 mounting hardware. This is a trunnion shock, so I only need to measure the bottom eyelet as the top bolts directly to the frame.

Measuring the bolt hole for mtb rear shock mounting hardware

Measuring bolt hole

measuring width for mtb rear shock mounting hardware

Measuring hardware side to side

          Alternatively, if for example, you don't already have mounting hardware to measure, you could measure the frame and bolt. The shock fixing bolt measures in at an external diameter of 8mm and the area where the shock sits measures at 20mm wide.

Measuring diameter of shock mounting bolt for mtb rear shock mounting hardware

Measuring the diameter of the shock mounting bolt

Measuring the width of the frame for mtb rear shock mounting hardware

Measuring the inside of where the shock sits in the frame

      So now that you know what size hardware you need, and have purchased it, it’s time to install it.

How To Remove and Install MTB Mounting Hardware

    This is an extremely easy job to do when you have the proper tools. However, it’s totally doable without them, just a little more frustrating.

The proper tools are:     - A vise with soft jaws     - A hardware removal tool     - DU bushing removal tool

A vice with soft jaws

A vice with soft jaws

Fox Shock hardware pin removal tool on a work bench

Hardware pin removal tool

du bushing removal tool on a work bench

DU bushing removal tool

Removing Mounting Hardware

          First, we’ll remove mounting hardware with both styles of bushings, and then install both styles on a shock. Removal is most of the labor, and installing is much easier. If you don’t need to remove any hardware, you can skip ahead to the installation part.     Before we begin, we wanted to show you what little pieces are included in Fox and RockShox mounting hardware since that’s constitutes nearly all mounting hardware on bikes out there. If you have a different brand, it’s either identical or nearly identical with the same principles.

    Fox hardware has outer spacers on both sides, an o-ring on each side, an inner pin and a bushing that presses into the eyelet. Older Fox hardware has one outer spacer on both sides, but newer Fox hardware has one large spacer and one thin crush spacer on each side. Fox hardware uses the poly IGUS bushing, but much older Fox hardware uses a steel bushing.

    RockShox hardware is about the same, but just uses one spacer with an integrated o-ring on each side, and a metal DU bushing.

Fox Shox Mountain Bike Rear Shock Mounting hardware components layed out on the floor

Fox hardware

Rockshox Mountain Bike Rear Shock Mounting hardware components layed out on the floor

Rockshox Hardware

          Some really old shocks use 2-piece alloy hardware, but very few bikes have these anymore and they just pop out by hand. Alright, let’s uninstall some hardware. Proceed carefully, and whenever working around suspension, the end goal is to not scratch anything.     First, you’ll need to remove the outer spacers and inner pin from the hardware. Try removing it by hand, which works on most RockShox hardware. If it won’t come off by hand then you’ll need to use the power of the vise to remove it. Grab your hardware removing tool, line it up in the shock, place it in the vise and press it out by tightening the vise.

Removing the hardware with a proper hardware removal tool in a vice

Removing the hardware with a proper hardware removal tool

          Now you just have to remove the inner bushing. There’s two styles, either metal or poly.

    First let’s start with the poly bushing since they are easier to remove. Simply take a flat head screwdriver, place it in the split between the bushings in the middle, and pry outward to pop it out. Then repeat on the other side. Don’t worry if you slightly scratch the surface inside the eyelet.

Removing the poly igus bushing from a fox Float X rear shock

          Now onto a metal bushing, which is properly pressed in there, meaning it needs to be pressed out. Take the DU bushing tool, place it in the vise with the shock and press out the bushing.

A metal DU bushing pressed into a 2022 Fox Float X mountain bike rear shock

The metal DU Bushing in the eyelet

Pressing a metal du bushing out of mtb rear shock

Pressing the bushing out with a DU Bushing removal tool

        Ok now that that’s done, you’ve noticed that we use a couple different tools in the shop to make this super easy, since we work on so many shocks. However, you might be able figure out that you could use a couple of sockets rather than a proper bushing tool to do this job, if you’re somewhat mechanically inclined.

    You basically just need something to push on one side and catch on the other. We aren’t going to tell you some magic combination of sockets to use as all different brands and styles of sockets are different thicknesses, so perform this at your own risk. Just make sure the pushing tool is at least as large as the inner diameter of the piece you’re pushing, but smaller than the eyelet size. Make sure the catching tool is large enough and long enough to catch the entire pin, but still small enough to sit on the shock eyelet so it doesn’t move a bunch when in the vise.     When using sockets instead of a proper DU bushing tool, you do run the risk of marring the anodized finish on the end of your shock, so please just take your time to do a good job. If you aren't feeling confident, you can always find a good local bike shop with a bushing tool to do it for you. If it feels like something isn’t working, stop what you’re doing to change your socket sizes as you don’t want to force something and damage the mounting hardware or your shock eyelet.

Installing Mounting Hardware

          Installing mounting hardware is much easier - you’ll still need a vise with soft jaws for this.     The first step is to install the bushing. If you have the poly/IGUS bushing, these can just be popped in by hand for the first bit, and then you can fully press them in by carefully pushing them down on the end of a work bench. If you have a metal DU bushing, simply line up the shock and bushing in the vise with soft jaws, and then tighten the vise until the bushing is fully pressed into the shock eyelet.

Pressing the poly igus bushings into a 2022 Fox Float X mtb rear shock

Beginning to press in the Poly/IGUS bushings

Poly igus bushings installed on a 2022 Fox Float X rear shock

The bushings installed

    Now, grab the sleeve/pin, push it in as much as you can by hand, and then finish pushing it in with the vise. Some of these are longer than others, and you’ll want to center the shock eyelet in the middle of the sleeve by wiggling the shock up and down while also sliding the pin sideways towards the center. Just eyeball it and get it as close to center as possible.     Now for the o-rings. If you have a poly/IGUS bushing, just carefully push the o-rings into the grooves on the bushing by hand. If you have a different style of hardware, these o-rings are probably built into the outer hardware. Now, grab the outer hardware, and slide those onto the sleeve as far toward the eyelet as possible. Then just pop the shock in the vise and tighten it to center everything.

Detail of mtb rear shock mounting hardware

The O-rings installed

  If you have newer Fox hardware, there are these thin crush washers that go on the outside, and you’ll notice these little, uhh nipples, or crush beads. Around the shop, we tend to use the phrase “nips out” for this. So point the nips outward and slide these onto the sleeve.

MTB rear shock mounting hardware completely installed on 2022 Fox Float X rear shock

      You may need to just pop it in the vise one more time to center everything. And wallah! Your mounting hardware is now installed. Do this on the other eyelet if applicable, and install the shock on your bike.       When you order a shock and mounting hardware from us, we install the hardware before shipping the shock to you, so all you have to do is just bolt on the shock and go ride.

Detail of MTB rear shock mounting hardware completely installed on 2022 Fox Float X rear shock

Mounting hardware installed on a shock

Fox Float X2 mountain bike rear shock installed on a Devinco Spartan

A trunnion style shock installed on a bike with mounting hardware on the bottom

    Now before we go, we had some other special notes to mention.     First, the frame bolts that go through the frame, through the eyelet, and thread into the frame on the other side are specific to the frame, and are not part of mounting hardware. The same is with trunnion shocks. The bolts that go through the frame, into the shock, and any small washers between the frame and shock are specific to the frame, and are not part of the mounting hardware. Also, some brands use proprietary hardware which is not available aftermarket. For example, many Treks use proprietary offset hardware, which must be purchased from Trek directly.     Some brands offer bike specific shock models. This primarily pertains to RockShox, who offer quite a few bike specific models, which includes mounting hardware in the box. If the bike the shock is designed for uses bearing hardware, they are currently using a specific bearing eyelet. The bearing cannot be removed to use it on another bike that does not use a bearing mount.

trek shock mounting hardware

          Last, but most certainly not least, if your bike calls for m8x22 mounting hardware (for example), you'll notice most companies don't actually make hardware in that size. In this case, you will want to go with the slightly smaller size of m8x21.8 since your frame can tolerate that small difference of the smaller size. You will not be able to size up and use m8x22.2 as the frame cannot expand to fit the larger size. This also happens with some other sizes as well.     We only recommend using a slightly smaller size when the exact size you need is not being produced.  

Well, there you have it! That is literally everything you could possibly know about mounting hardware for mountain bike rear shocks.

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ABOUT THE RIDER/WRITER

trek shock mounting hardware

Current Bikes: Mullet Devinci Spartan 27.5 Custom Build

Bike Size: Medium

Favorite Trails: Dirt Merchant in Whistler, Chuckanut Mountain Trails in Bellingham

About Me: I grew up hucking my bike off curbs in the suburbs of Chicago. I moved out to the PNW in 2014 and opened The Lost Co in 2016. I freaking love riding long rough descents and really pushing my body to the limit. I'll straight up ride any type of bike but really prefer long travel 27.5" bikes. However, mid-travel 29r's are growing on me...

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min-width: 160px; margin: 0 5px 10px; } } /* Mobile view one-column mode */ @media (max-width: 370px) { #snize_skeleton_results ul.snize-search-results-content li.snize-product { width: 96%; width: calc(100% - 10px); } #snize_skeleton_results ul.snize-search-results-content li.snize-product:not(:first-child) { display: none; } } /* Themes hack */ div.grid div.grid-item.large--two-thirds.push--large--one-sixth { left: 0; width: 100%; } --> // = 1055) { grid_wrapper.className = grid_wrapper.className.replace(/(?:^|\s)snize-three-columns(?!\S)/g , '').replace(/(?:^|\s)snize-four-columns(?!\S)/g , ''); if (!grid_wrapper.className.match(/(?:^|\s)snize-five-columns(?!\S)/)) { grid_wrapper.className += ' snize-five-columns'; } } else if (grid_wrapper.offsetWidth >= 915) { grid_wrapper.className = grid_wrapper.className.replace(/(?:^|\s)snize-three-columns(?!\S)/g , '').replace(/(?:^|\s)snize-five-columns(?!\S)/g , ''); if (!grid_wrapper.className.match(/(?:^|\s)snize-four-columns(?!\S)/)) { grid_wrapper.className += ' snize-four-columns'; } } else { grid_wrapper.className = grid_wrapper.className.replace(/(?:^|\s)snize-four-columns(?!\S)/g , '').replace(/(?:^|\s)snize-five-columns(?!\S)/g , ''); if (!grid_wrapper.className.match(/(?:^|\s)snize-three-columns(?!\S)/)) { grid_wrapper.className += ' snize-three-columns'; } } }, 30); if (window.location.href.indexOf('collection=') != -1) { var elements = document.getElementsByClassName('snize-search-results-page-title'); for (var i = 0; i

RockShox Rear Shock Mounting Hardware - 3-Piece, 1/2

Rear Shock Mounting Hardware Designed to fit RockShox rear shocks, except the BAR (contact SRAM for 12mm BAR hardware) Compatible with most 1/2"x1/2" rear shock eyelets. Consult manufacturer for compatibility 1 kit required per eyelet (2 kits required per rear shock) Item Specifications Bolt Mount Diameter 8 Frame Mount Width 20 RockShox Rear shock mounting hardware Rear Shock Mount Kit UPC: 710845868023

by RockShox

RockShox Rear Shock Mounting Hardware - 3-Piece, 1/2

Rear Shock Mounting Hardware Designed to fit RockShox rear shocks, except the BAR (contact SRAM for 12mm BAR hardware) Compatible with most 1/2"x1/2" rear shock eyelets. Consult manufacturer for compatibility 1 kit required per eyelet (2 kits required per rear shock) Item Specifications Bolt Mount Diameter 8 Frame Mount Width 22.2 RockShox Rear shock mounting hardware Rear Shock Mount Kit UPC: 710845868054

RockShox Rear Shock Mounting Hardware - 3-Piece, 1/2

Rear Shock Mounting Hardware Designed to fit RockShox rear shocks, except the BAR (contact SRAM for 12mm BAR hardware) Compatible with most 1/2"x1/2" rear shock eyelets. Consult manufacturer for compatibility 1 kit required per eyelet (2 kits required per rear shock) Item Specifications Bolt Mount Diameter 8 Frame Mount Width 22 RockShox Rear shock mounting hardware Rear Shock Mount Kit UPC: 710845868047

RockShox Rear Shock Mounting Hardware - 3-Piece, 1/2

Rear Shock Mounting Hardware Designed to fit RockShox rear shocks, except the BAR (contact SRAM for 12mm BAR hardware) Compatible with most 1/2"x1/2" rear shock eyelets. Consult manufacturer for compatibility 1 kit required per eyelet (2 kits required per rear shock) Item Specifications Bolt Mount Diameter 8 Frame Mount Width 30 RockShox Rear shock mounting hardware Rear Shock Mount Kit UPC: 710845868191

RockShox Rear Shock Mounting Hardware - 3-Piece, 1/2

Rear Shock Mounting Hardware Designed to fit RockShox rear shocks, except the BAR (contact SRAM for 12mm BAR hardware) Compatible with most 1/2"x1/2" rear shock eyelets. Consult manufacturer for compatibility 1 kit required per eyelet (2 kits required per rear shock) Item Specifications Bolt Mount Diameter 8 Frame Mount Width 25 RockShox Rear shock mounting hardware Rear Shock Mount Kit UPC: 710845868122

RockShox Rear Shock Mounting Hardware - 3-Piece, 1/2

Rear Shock Mounting Hardware Designed to fit RockShox rear shocks, except the BAR (contact SRAM for 12mm BAR hardware) Compatible with most 1/2"x1/2" rear shock eyelets. Consult manufacturer for compatibility 1 kit required per eyelet (2 kits required per rear shock) Item Specifications Bolt Mount Diameter 8 Frame Mount Width 40 RockShox Rear shock mounting hardware Rear Shock Mount Kit UPC: 710845868351

RockShox Rear Shock Moutning Hardware - 3-Piece, Metric, 10 x 60mm Offset

Rear Shock Mounting Hardware Designed to fit RockShox rear shocks, except the BAR (contact SRAM for 12mm BAR hardware) Compatible with most 1/2"x1/2" rear shock eyelets. Consult manufacturer for compatibility 1 kit required per eyelet (2 kits required per rear shock) RockShox Rear shock mounting hardware Rear Shock Mount Kit UPC: 710845794025

RockShox Rear Shock Mounting Hardware - 3-Piece, 1/2

Rear Shock Mounting Hardware Designed to fit RockShox rear shocks, except the BAR (contact SRAM for 12mm BAR hardware) Compatible with most 1/2"x1/2" rear shock eyelets. Consult manufacturer for compatibility 1 kit required per eyelet (2 kits required per rear shock) Item Specifications Bolt Mount Diameter 8 Frame Mount Width 21.8 RockShox Rear shock mounting hardware Rear Shock Mount Kit UPC: 710845868030

RockShox Rear Shock Mounting Hardware - 3-Piece, 1/2

Rear Shock Mounting Hardware Designed to fit RockShox rear shocks, except the BAR (contact SRAM for 12mm BAR hardware) Compatible with most 1/2"x1/2" rear shock eyelets. Consult manufacturer for compatibility 1 kit required per eyelet (2 kits required per rear shock) Item Specifications Bolt Mount Diameter 8 Frame Mount Width 35 RockShox Rear shock mounting hardware Rear Shock Mount Kit UPC: 710845868276

RockShox Rear Shock Mounting Hardware - 3-Piece, 1/2

Rear Shock Mounting Hardware Designed to fit RockShox rear shocks, except the BAR (contact SRAM for 12mm BAR hardware) Compatible with most 1/2"x1/2" rear shock eyelets. Consult manufacturer for compatibility 1 kit required per eyelet (2 kits required per rear shock) Item Specifications Bolt Mount Diameter 6 Frame Mount Width 22.2 RockShox Rear shock mounting hardware Rear Shock Mount Kit UPC: 710845867767

RockShox Rear Shock Mounting Hardware - 3-Piece, 1/2

Rear Shock Mounting Hardware Designed to fit RockShox rear shocks, except the BAR (contact SRAM for 12mm BAR hardware) Compatible with most 1/2"x1/2" rear shock eyelets. Consult manufacturer for compatibility 1 kit required per eyelet (2 kits required per rear shock) Item Specifications Bolt Mount Diameter 8 Frame Mount Width 24 RockShox Rear shock mounting hardware Rear Shock Mount Kit UPC: 710845868092

RockShox Rear Shock Mounting Hardware - 3-Piece, 1/2

Rear Shock Mounting Hardware Designed to fit RockShox rear shocks, except the BAR (contact SRAM for 12mm BAR hardware) Compatible with most 1/2"x1/2" rear shock eyelets. Consult manufacturer for compatibility 1 kit required per eyelet (2 kits required per rear shock) Item Specifications Bolt Mount Diameter 10 Frame Mount Width 20 RockShox Rear shock mounting hardware Rear Shock Mount Kit UPC: 710845868634

RockShox Rear Shock Mounting Hardware - 3-Piece, 1/2

Rear Shock Mounting Hardware Designed to fit RockShox rear shocks, except the BAR (contact SRAM for 12mm BAR hardware) Compatible with most 1/2"x1/2" rear shock eyelets. Consult manufacturer for compatibility 1 kit required per eyelet (2 kits required per rear shock) Item Specifications Bolt Mount Diameter 10 Frame Mount Width 50 RockShox Rear shock mounting hardware Rear Shock Mount Kit UPC: 710845868726

RockShox Rear Shock Mounting Hardware - 3-Piece, 1/2

Rear Shock Mounting Hardware Designed to fit RockShox rear shocks, except the BAR (contact SRAM for 12mm BAR hardware) Compatible with most 1/2"x1/2" rear shock eyelets. Consult manufacturer for compatibility 1 kit required per eyelet (2 kits required per rear shock) Item Specifications Bolt Mount Diameter 10 Frame Mount Width 30 RockShox Rear shock mounting hardware Rear Shock Mount Kit UPC: 710845868672

RockShox Rear Shock Mounting Hardware - 3-Piece, 1/2

Rear Shock Mounting Hardware Designed to fit RockShox rear shocks, except the BAR (contact SRAM for 12mm BAR hardware) Compatible with most 1/2"x1/2" rear shock eyelets. Consult manufacturer for compatibility 1 kit required per eyelet (2 kits required per rear shock) Item Specifications Bolt Mount Diameter 8 Frame Mount Width 15 RockShox Rear shock mounting hardware Rear Shock Mount Kit UPC: 710845867972

RockShox Rear Shock Mounting Hardware - 3-Piece, 1/2

Rear Shock Mounting Hardware Designed to fit RockShox rear shocks, except the BAR (contact SRAM for 12mm BAR hardware) Compatible with most 1/2"x1/2" rear shock eyelets. Consult manufacturer for compatibility 1 kit required per eyelet (2 kits required per rear shock) Item Specifications Bolt Mount Diameter 8 Frame Mount Width 36 RockShox Rear shock mounting hardware Rear Shock Mount Kit UPC: 710845868290

RockShox Rear Shock Mounting Hardware - 3-Piece, 1/2

Rear Shock Mounting Hardware Designed to fit RockShox rear shocks, except the BAR (contact SRAM for 12mm BAR hardware) Compatible with most 1/2"x1/2" rear shock eyelets. Consult manufacturer for compatibility 1 kit required per eyelet (2 kits required per rear shock) Item Specifications Bolt Mount Diameter 6 Frame Mount Width 20 RockShox Rear shock mounting hardware Rear Shock Mount Kit UPC: 710845867743

RockShox Rear Shock Mounting Hardware - 3-Piece, 1/2

Rear Shock Mounting Hardware Designed to fit RockShox rear shocks, except the BAR (contact SRAM for 12mm BAR hardware) Compatible with most 1/2"x1/2" rear shock eyelets. Consult manufacturer for compatibility 1 kit required per eyelet (2 kits required per rear shock) Item Specifications Bolt Mount Diameter 6 Frame Mount Width 21.8 RockShox Rear shock mounting hardware Rear Shock Mount Kit UPC: 710845867750

RockShox Rear Shock Mounting Hardware - 3-Piece, 1/2

Rear Shock Mounting Hardware Designed to fit RockShox rear shocks, except the BAR (contact SRAM for 12mm BAR hardware) Compatible with most 1/2"x1/2" rear shock eyelets. Consult manufacturer for compatibility 1 kit required per eyelet (2 kits required per rear shock) Item Specifications Bolt Mount Diameter 10 Frame Mount Width 40 RockShox Rear shock mounting hardware Rear Shock Mount Kit UPC: 710845868702

RockShox Rear Shock Mounting Hardware - 3-Piece, 1/2

Rear Shock Mounting Hardware Designed to fit RockShox rear shocks, except the BAR (contact SRAM for 12mm BAR hardware) Compatible with most 1/2"x1/2" rear shock eyelets. Consult manufacturer for compatibility 1 kit required per eyelet (2 kits required per rear shock) Item Specifications Bolt Mount Diameter 8 Frame Mount Width 30.8 RockShox Rear shock mounting hardware Rear Shock Mount Kit UPC: 710845868207

RockShox Rear Shock Mounting Hardware - 3-Piece, 1/2

Rear Shock Mounting Hardware Designed to fit RockShox rear shocks, except the BAR (contact SRAM for 12mm BAR hardware) Compatible with most 1/2"x1/2" rear shock eyelets. Consult manufacturer for compatibility 1 kit required per eyelet (2 kits required per rear shock) Item Specifications Bolt Mount Diameter 8 Frame Mount Width 16 RockShox Rear shock mounting hardware Rear Shock Mount Kit UPC: 710845867996

RockShox Rear Shock Mounting Hardware - 3-Piece, 1/2

Rear Shock Mounting Hardware Designed to fit RockShox rear shocks, except the BAR (contact SRAM for 12mm BAR hardware) Compatible with most 1/2"x1/2" rear shock eyelets. Consult manufacturer for compatibility 1 kit required per eyelet (2 kits required per rear shock) Item Specifications Bolt Mount Diameter 8 Frame Mount Width 25.2 RockShox Rear shock mounting hardware Rear Shock Mount Kit UPC: 710845868139

RockShox Rear Shock Mounting Hardware - 3-Piece, 1/2

Rear Shock Mounting Hardware Designed to fit RockShox rear shocks, except the BAR (contact SRAM for 12mm BAR hardware) Compatible with most 1/2"x1/2" rear shock eyelets. Consult manufacturer for compatibility 1 kit required per eyelet (2 kits required per rear shock) Item Specifications Bolt Mount Diameter 8 Frame Mount Width 23.3 RockShox Rear shock mounting hardware Rear Shock Mount Kit UPC: 710845868078

RockShox Rear Shock Mounting Hardware - 3-Piece, 1/2

Rear Shock Mounting Hardware Designed to fit RockShox rear shocks, except the BAR (contact SRAM for 12mm BAR hardware) Compatible with most 1/2"x1/2" rear shock eyelets. Consult manufacturer for compatibility 1 kit required per eyelet (2 kits required per rear shock) Item Specifications Bolt Mount Diameter 8 Frame Mount Width 14 RockShox Rear shock mounting hardware Rear Shock Mount Kit UPC: 710845867965

RockShox Rear Shock Mounting Hardware - 3-Piece, Metric, 10 x 35

Rear Shock Mounting Hardware Designed to fit RockShox rear shocks, except the BAR (contact SRAM for 12mm BAR hardware) Compatible with most 1/2"x1/2" rear shock eyelets. Consult manufacturer for compatibility 1 kit required per eyelet (2 kits required per rear shock) Item Specifications Bolt Mount Diameter 10 Frame Mount Width 35 RockShox Rear shock mounting hardware Rear Shock Mount Kit UPC: 710845786884

RockShox Rear Shock Mounting Hardware - 3-Piece, 1/2

Rear Shock Mounting Hardware Designed to fit RockShox rear shocks, except the BAR (contact SRAM for 12mm BAR hardware) Compatible with most 1/2"x1/2" rear shock eyelets. Consult manufacturer for compatibility 1 kit required per eyelet (2 kits required per rear shock) Item Specifications Bolt Mount Diameter 8 Frame Mount Width 31.75 RockShox Rear shock mounting hardware Rear Shock Mount Kit UPC: 710845868214

RockShox Rear Shock Mounting Hardware - 3-Piece, 1/2

Rear Shock Mounting Hardware Designed to fit RockShox rear shocks, except the BAR (contact SRAM for 12mm BAR hardware) Compatible with most 1/2"x1/2" rear shock eyelets. Consult manufacturer for compatibility 1 kit required per eyelet (2 kits required per rear shock) Item Specifications Bolt Mount Diameter 8 Frame Mount Width 38 RockShox Rear shock mounting hardware Rear Shock Mount Kit UPC: 710845868320

RockShox Rear Shock Mounting Hardware - 3-Piece, 1/2

Rear Shock Mounting Hardware Designed to fit RockShox rear shocks, except the BAR (contact SRAM for 12mm BAR hardware) Compatible with most 1/2"x1/2" rear shock eyelets. Consult manufacturer for compatibility 1 kit required per eyelet (2 kits required per rear shock) Item Specifications Bolt Mount Diameter 8 Frame Mount Width 19 RockShox Rear shock mounting hardware Rear Shock Mount Kit UPC: 710845868016

RockShox Rear Shock Mounting Hardware - 3-Piece, 1/2

Rear Shock Mounting Hardware Designed to fit RockShox rear shocks, except the BAR (contact SRAM for 12mm BAR hardware) Compatible with most 1/2"x1/2" rear shock eyelets. Consult manufacturer for compatibility 1 kit required per eyelet (2 kits required per rear shock) Item Specifications Bolt Mount Diameter 10 Frame Mount Width 15 RockShox Rear shock mounting hardware Rear Shock Mount Kit UPC: 710845868597

RockShox Rear Shock Bearing Dust Cover: Metric 40mm, Qty 2

Replacement Rear Shock Bearing Dust Covers. RockShox Metric Bearing Dust Covers Rear Shock Mount Kit UPC: 710845796159

RockShox Rear Shock Mounting Hardware - 3-Piece, 1/2

Rear Shock Mounting Hardware Designed to fit RockShox rear shocks, except the BAR (contact SRAM for 12mm BAR hardware) Compatible with most 1/2"x1/2" rear shock eyelets. Consult manufacturer for compatibility 1 kit required per eyelet (2 kits required per rear shock) Item Specifications Bolt Mount Diameter 8 Frame Mount Width 25.4 RockShox Rear shock mounting hardware Rear Shock Mount Kit UPC: 710845868146

RockShox Rear Shock Mounting Hardware - 3-Piece, 1/2

Rear Shock Mounting Hardware Designed to fit RockShox rear shocks, except the BAR (contact SRAM for 12mm BAR hardware) Compatible with most 1/2"x1/2" rear shock eyelets. Consult manufacturer for compatibility 1 kit required per eyelet (2 kits required per rear shock) Item Specifications Bolt Mount Diameter 8 Frame Mount Width 34 RockShox Rear shock mounting hardware Rear Shock Mount Kit UPC: 710845868269

RockShox Rear Shock Mounting Hardware - 3-Piece, 1/2

Rear Shock Mounting Hardware Designed to fit RockShox rear shocks, except the BAR (contact SRAM for 12mm BAR hardware) Compatible with most 1/2"x1/2" rear shock eyelets. Consult manufacturer for compatibility 1 kit required per eyelet (2 kits required per rear shock) Item Specifications Bolt Mount Diameter 8 Frame Mount Width 23 RockShox Rear shock mounting hardware Rear Shock Mount Kit UPC: 710845868061

RockShox Rear Shock Mounting Hardware - 3-Piece, 1/2

Rear Shock Mounting Hardware Designed to fit RockShox rear shocks, except the BAR (contact SRAM for 12mm BAR hardware) Compatible with most 1/2"x1/2" rear shock eyelets. Consult manufacturer for compatibility 1 kit required per eyelet (2 kits required per rear shock) Item Specifications Bolt Mount Diameter 8 Frame Mount Width 26 RockShox Rear shock mounting hardware Rear Shock Mount Kit UPC: 710845868153

RockShox Rear Shock Mounting Hardware - 3-Piece, 1/2

Rear Shock Mounting Hardware Designed to fit RockShox rear shocks, except the BAR (contact SRAM for 12mm BAR hardware) Compatible with most 1/2"x1/2" rear shock eyelets. Consult manufacturer for compatibility 1 kit required per eyelet (2 kits required per rear shock) Item Specifications Bolt Mount Diameter 8 Frame Mount Width 32 RockShox Rear shock mounting hardware Rear Shock Mount Kit UPC: 710845868221

RockShox Rear Shock Mounting Hardware - 3-Piece, 1/2

Rear Shock Mounting Hardware Designed to fit RockShox rear shocks, except the BAR (contact SRAM for 12mm BAR hardware) Compatible with most 1/2"x1/2" rear shock eyelets. Consult manufacturer for compatibility 1 kit required per eyelet (2 kits required per rear shock) Item Specifications Bolt Mount Diameter 8 Frame Mount Width 24.4 RockShox Rear shock mounting hardware Rear Shock Mount Kit UPC: 710845868115

RockShox Rear Shock Mounting Hardware - 3-Piece, 1/2

Rear Shock Mounting Hardware Designed to fit RockShox rear shocks, except the BAR (contact SRAM for 12mm BAR hardware) Compatible with most 1/2"x1/2" rear shock eyelets. Consult manufacturer for compatibility 1 kit required per eyelet (2 kits required per rear shock) Item Specifications Bolt Mount Diameter 8 Frame Mount Width 23.8 RockShox Rear shock mounting hardware Rear Shock Mount Kit UPC: 710845868085

RockShox Rear Shock Mounting Hardware - 3-Piece, 1/2

Rear Shock Mounting Hardware Designed to fit RockShox rear shocks, except the BAR (contact SRAM for 12mm BAR hardware) Compatible with most 1/2"x1/2" rear shock eyelets. Consult manufacturer for compatibility 1 kit required per eyelet (2 kits required per rear shock) Item Specifications Bolt Mount Diameter 8 Frame Mount Width 39.9 RockShox Rear shock mounting hardware Rear Shock Mount Kit UPC: 710845868344

RockShox Rear Shock Mounting Hardware - 3-Piece, 1/2

Rear Shock Mounting Hardware Designed to fit RockShox rear shocks, except the BAR (contact SRAM for 12mm BAR hardware) Compatible with most 1/2"x1/2" rear shock eyelets. Consult manufacturer for compatibility 1 kit required per eyelet (2 kits required per rear shock) Item Specifications Bolt Mount Diameter 8 Frame Mount Width 15.75 RockShox Rear shock mounting hardware Rear Shock Mount Kit UPC: 710845867989

RockShox Rear Shock Mounting Hardware - 3-Piece, 1/2

Rear Shock Mounting Hardware Designed to fit RockShox rear shocks, except the BAR (contact SRAM for 12mm BAR hardware) Compatible with most 1/2"x1/2" rear shock eyelets. Consult manufacturer for compatibility 1 kit required per eyelet (2 kits required per rear shock) Item Specifications Bolt Mount Diameter 8 Frame Mount Width 37.4 RockShox Rear shock mounting hardware Rear Shock Mount Kit UPC: 710845868306

RockShox Rear Shock Mounting Hardware - 3-Piece, Metric, 6 x 35

Rear Shock Mounting Hardware Designed to fit RockShox rear shocks, except the BAR (contact SRAM for 12mm BAR hardware) Compatible with most 1/2"x1/2" rear shock eyelets. Consult manufacturer for compatibility 1 kit required per eyelet (2 kits required per rear shock) Item Specifications Bolt Mount Diameter 6 Frame Mount Width 35 RockShox Rear shock mounting hardware Rear Shock Mount Kit UPC: 710845786747

RockShox Rear Shock Mounting Hardware - 3-Piece, 1/2

Rear Shock Mounting Hardware Designed to fit RockShox rear shocks, except the BAR (contact SRAM for 12mm BAR hardware) Compatible with most 1/2"x1/2" rear shock eyelets. Consult manufacturer for compatibility 1 kit required per eyelet (2 kits required per rear shock) Item Specifications Bolt Mount Diameter 8 Frame Mount Width 45 RockShox Rear shock mounting hardware Rear Shock Mount Kit UPC: 710845868436

RockShox Rear Shock Mounting Hardware - 3-Piece, 1/2

Rear Shock Mounting Hardware Designed to fit RockShox rear shocks, except the BAR (contact SRAM for 12mm BAR hardware) Compatible with most 1/2"x1/2" rear shock eyelets. Consult manufacturer for compatibility 1 kit required per eyelet (2 kits required per rear shock) Item Specifications Bolt Mount Diameter 6 Frame Mount Width 42 RockShox Rear shock mounting hardware Rear Shock Mount Kit UPC: 710845867927

RockShox Rear Shock Mounting Hardware - 3-Piece, 1/2

Rear Shock Mounting Hardware Designed to fit RockShox rear shocks, except the BAR (contact SRAM for 12mm BAR hardware) Compatible with most 1/2"x1/2" rear shock eyelets. Consult manufacturer for compatibility 1 kit required per eyelet (2 kits required per rear shock) Item Specifications Bolt Mount Diameter 10 Frame Mount Width 22.4 RockShox Rear shock mounting hardware Rear Shock Mount Kit UPC: 710845868658

RockShox Rear Shock Mounting Hardware - 3-Piece, 1/2

Rear Shock Mounting Hardware Designed to fit RockShox rear shocks, except the BAR (contact SRAM for 12mm BAR hardware) Compatible with most 1/2"x1/2" rear shock eyelets. Consult manufacturer for compatibility 1 kit required per eyelet (2 kits required per rear shock) Item Specifications Bolt Mount Diameter 10 Frame Mount Width 22.2 RockShox Rear shock mounting hardware Rear Shock Mount Kit UPC: 710845868641

RockShox Rear Shock Mounting Hardware - 3-Piece, 1/2

Rear Shock Mounting Hardware Designed to fit RockShox rear shocks, except the BAR (contact SRAM for 12mm BAR hardware) Compatible with most 1/2"x1/2" rear shock eyelets. Consult manufacturer for compatibility 1 kit required per eyelet (2 kits required per rear shock) Item Specifications Bolt Mount Diameter 8 Frame Mount Width 28.6 RockShox Rear shock mounting hardware Rear Shock Mount Kit UPC: 710845868184

RockShox Rear Shock Mounting Hardware - 3-Piece, 1/2

Rear Shock Mounting Hardware Designed to fit RockShox rear shocks, except the BAR (contact SRAM for 12mm BAR hardware) Compatible with most 1/2"x1/2" rear shock eyelets. Consult manufacturer for compatibility 1 kit required per eyelet (2 kits required per rear shock) Item Specifications Bolt Mount Diameter 8 Frame Mount Width 50 RockShox Rear shock mounting hardware Rear Shock Mount Kit UPC: 710845868467

RockShox Rear Shock Mounting Hardware - 3-Piece, 1/2

Rear Shock Mounting Hardware Designed to fit RockShox rear shocks, except the BAR (contact SRAM for 12mm BAR hardware) Compatible with most 1/2"x1/2" rear shock eyelets. Consult manufacturer for compatibility 1 kit required per eyelet (2 kits required per rear shock) Item Specifications Bolt Mount Diameter 8 Frame Mount Width 37.6 RockShox Rear shock mounting hardware Rear Shock Mount Kit UPC: 710845868313

RockShox Rear Shock Mounting Hardware - 3-Piece, 1/2

Rear Shock Mounting Hardware Designed to fit RockShox rear shocks, except the BAR (contact SRAM for 12mm BAR hardware) Compatible with most 1/2"x1/2" rear shock eyelets. Consult manufacturer for compatibility 1 kit required per eyelet (2 kits required per rear shock) Item Specifications Bolt Mount Diameter 10 Frame Mount Width 14 RockShox Rear shock mounting hardware Rear Shock Mount Kit UPC: 710845868580

RockShox Rear Shock Mounting Hardware - 3-Piece, 1/2

Rear Shock Mounting Hardware Designed to fit RockShox rear shocks, except the BAR (contact SRAM for 12mm BAR hardware) Compatible with most 1/2"x1/2" rear shock eyelets. Consult manufacturer for compatibility 1 kit required per eyelet (2 kits required per rear shock) Item Specifications Bolt Mount Diameter 8 Frame Mount Width 41.5 RockShox Rear shock mounting hardware Rear Shock Mount Kit UPC: 710845868382

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trek shock mounting hardware

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Trek Shock Upgrades - Thru Shaft to Standard

Posted on March 09 2023

trek shock mounting hardware

  • Trunnion to Pin 69mm  Available here
  • 54mm x 10mm Hardware Fox Available here
  • 60mm x 10mm Hardware Fox Available here
  • 54mm x 10mm Hardware Rockshox  Available here 
  • 60mm x 10mm Hardware Rockshox Available here
  • 50mm x 10mm Offset Hardware Fox   Available here
  • 50mm x 10mm Offset Hardware Rockshox  Available here 

Commonly used for the lower shock mounting bolt on Slash (2021+), Fuel EX (2021+), and Trek Rail 2022+. Used in conjunction with 40mm x 10mm mounting hardware. Trek Part #5258210

  • Trunnion to Pin 55mm  Available here
  • 40mm x 10mm Hardware Fox Available here
  • 40mm x 10mm Hardware Rockshox Available here

Commonly used for the lower shock mounting bolt on Fuel EX and Remedy and Slash (2017-2020). Used in conjunction with 50mm (49.78) mm x 10mm Offset mounting hardware. Trek Part #599899

  • Trunnion to Pin 65mm   Available here

Commonly used for the lower shock mounting bolt on Trek Rail 2020/21,  Fuel EX Carbon (2017). Used in conjunction with 50mm (49.78) mm x 10mm Offset mounting hardware, or 40mm x 10mm hardware. Trek part # 540756 (16mm head for earlier frame), or 18mm head for later (2021+) frames. 

  • Trunnion to Pin 59mm (18mm head)   Available here
  • Trunnion to Pin 59mm ( 16mm head)   Available here
  • 40mm x 10mm Hardware Fox   Available here
  • 40mm x 10mm Hardware Rockshox   Available here

Notice an error? Let us know!  

trek shock mounting hardware

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Trek Rear Shock Pin-to-Trunnion Hardware

Trek Trek Rear Shock Pin-to-Trunnion Hardware

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Product Description

Please see the below chart to correctly identify which bolt you need when replacing your Thru Shaft shock with a standard eyelet shock. Any questions, please give us a call

Trek Slash - My21 Upper Shock Axle –  599898 Lower Shock Axle – 5258210

Trek Slash Upper Shock Axle – 540755 Lower Shock Axle – 540755

Trek Rail - Gen 3 / Gen 4 (2022+) Upper Shock Axle – 5258209 Lower Shock Axle – 5258210 Trek Rail - Gen 2 Upper Shock Axle – 599898 Lower Shock Axle – 599900

Trek Rail Upper Shock Axle – 599898 Lower Shock Axle – 599900

Trek Fuel EX -MY20-21 Upper Shock Axle – 599898 Lower Shock Axle – 599899 Trek Fuel EX - MY17-19 Upper Shock Axle –  540755 Lower Shock Axle –  540756

Trek Remedy - MY19

Upper Shock Axle – 540755 Lower Shock Axle – 540755

View other products in Trek Bolts »

For spare parts, if they are in stock we will send them out the same day if we receive the order before midday (except weekends). If we receive the order after midday, we will do our best to despatch them same day, but it may be the following working day. Orders placed after 3pm on Friday will be despatched on the following Monday. We normally send spare parts by Royal Mail post (see below or our ' Shipping ' page for cost/delivery times). Forks, shocks and large/heavy orders go by courier. UK deliveries are with DPD Local, for overseas customers it's DPD, FedEx or DHL.  In all cases these are fully tracked services and you'll need to sign for the delivery - please provide a suitable address with extra instructions if necessary.

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RockShox Rear Shock Fitment Guide

Sizing and specification for 2023+ products

Looking to upgrade your rear shock to a RockShox model? We love to hear it! While swapping your shock should be straightforward, a few essential checks and measurements can ensure a seamless process.  This guide is designed to help you identify compatibility between your frame and our rear shocks: SidLuxe, Deluxe, Super Deluxe, Super Deluxe Coil, and Vivid.

First Point Of Contact

Your local bike shop or bicycle manufactuer should be the first place to source information  when considering a shock upgrade.  They can offer valuable insights into which shocks are compatible with your bike model as well as what the eye-to-eye and stroke lengths are to prevent any compatibility issues down the road.

Some brands will even go one step further and suggest suspension settings such as spring rate (air and coil), Compression, and Rebound settings. If you cannot get information from the manufacturer, we have a host of checks and measurements below.

If there is no specific information about which rear shocks will fit, there are a few things to consider before deciding on a new shock.

You've got a choice to make—an inline or reservoir shock

Alright, folks, imagine your mountain bike sitting in the garage, it's a dual suspension and you're looking at upgrading your shock. You've got a choice to make - a inline shock or a reservoir shock. What's the deal, and why should you care?

Inline Shocks:

Think of inline shocks like the ninja of mountain bike suspension—sleek, stealthy, and ready to rock . These bad boys are compact and take up the least amount of space in your frame. They're the go-to choice for XC (cross-country) or trail riders who want a lightweight and efficient shock but you will see these shocks on all kinds of bikes, up to enduro rigs.

Picture it this way: Inline shocks are like a hidden dagger.  They are a compact package that delivers precise performance when you need it most . Perfect for those who want to climb like a mountain goat and descend like a downhill daredevil, all while keeping things lean and mean.

Reservoir Shocks:

Now, let's talk about reservoir shocks. These are the rockstars of the mountain biking world. Imagine a shock with an extra, well, "reservoir" canister attached to it. It's like strapping a nitrous oxide tank onto your bike – extra power, extra show!

Reservoir shocks are all about soaking up the big hits with style. When you're bombing down steep descents or launching off monster jumps, the extra oil volume and cooling capacity in that reservoir canister keep your shock cool and collected. It's like having an extra set of lungs to help you scream down the trail without breaking a sweat.

So, inline vs. reservoir?

It's all about the terrain and your riding style. If you're into long climbs and want to save energy, go inline. If you live for the adrenaline rush and demand top-notch performance on those epic descents, then it's time to reservoir your way to glory.

In the end, it's not about being better or worse; it's about choosing the shock that matches your biking mojo. Inline for precision, reservoir for power – the choice is yours, you two-wheeled trailblazers!

Related Image

Inline and Reservoir shocks have specific characteristics. IFP = Internal Floating Piston

Space In Your Frame

The first thing to consider is the style of rear shock you want or need for your frame: an in-line air shock, an in-line coil shock, or a reservoir-style system .

Switching from an in-line shock to a reservoir style system, li ke swapping a Deluxe to a Super Deluxe , requires some careful consideration. To assess compatibility, you can release air pressure from your current shock and cycle the suspension. While doing this, pay attention to any potential interference between the shock and objects on the frame, such as water bottles, cages, spare straps, or tubes. The available space around the shock can vary significantly depending on the bike model, as shown in the examples below. This step ensures that the new shock's reservoir design won't face any obstructions during suspension movement. 

Cycling your shock will give you a visual for any clearance issues

Shock measurements, explained.

There are a few key measurements that you will need to know to determine the correct fit for you. These measurements include eye-to-eye, stroke, and mounting hardware.' The best course of action is to visit the manufacturer's website, consult your local bike shop, directly contact the manufacturer for guidance, or measure this yourself. If you are measuring it yourself, please make sure you have an accurate measuring device like digital calipers/verniers, as the stroke lengths change by 2.5mm, which is quite a small margin.

What Is Eye-to-Eye?

The eye-to-eye measurement refers to the total length of the shock from one mounting bolt to the other. It's a critical factor for proper fit and bike performance. Using a shock that is too long or too short can result in irreparable damage to your bike while also significantly altering its geometry. It's essential to ensure the shock's eye-to-eye measurement matches your bike's specifications.

To measure this yourself, take the measurement from the center of the shock mounting points, as illustrated below.

Related Image

What Is Stroke Length? 

The stroke length differs from the bike's overall travel due to linkages and rear wheel travel, which is measured from the rear axle. For the latest 'metric' shock sizing, each eye-to-eye length generally has four stroke length options. It's crucial to use the stroke length specified by your bike manufacturer.

Related Image

Many bicycle manufacturers will tell you the shock size on their websites

Friends don't let friends overstroke their shock.  (Unless your bicycle manufacturer states you can.)

Changing the stroke of your shock may sound or seem like you are just getting secret extra travel for your bike and in a sense you may. But there are a huge amount of factors and concerns that come into play if you are using a stroke length that is longer than intended for your bicycle,  which, at a minimum, can void any warranty you have on your bike, and can even cause serious injury or death for riders. Factors that can cause damage may extend to dynamic riding situations as opposed to clearance issues you can see in the workshop, these include but are not limited to:

  • Contact between the wheel and seat stay. This can even occur under flex of the frame under High Compression situations. 
  • Linkages over-rotate, damaging frames or becoming stuck.
  • Excess force put onto linkages or frame mounts causing damage to the frame. 

Trunnion or Standard Eyelets?

Shock eyelets come in two styles: Trunnion and Standard. However, the choice between these two designs is determined by the bicycle manufacturer and cannot be altered by the user. Each style also corresponds to specific eye-to-eye lengths to ensure clarity and compatibility.

Related Image

Trunnion eyelets are employed to reduce the overall shock length in a bike, enabling frames to have a lower standover height and more mounting options. They typically eliminate the need for mounting hardware, attaching directly to a bearing or using a frame-supplied spacer or washer. 

Not all bicycle manufacturers will state that their bike is 'Standard' or 'Trunnion', however. If you are able to locate their shock sizes, you will find they align with the specific lengths listed above and this will indicate which style of mounting is needed.

Mounting Hardware

Mounting hardware is utilized for standard mounts and is entirely determined by the frame manufacturer. Its purpose is to enable the shock to fit into a frame where the pivots or mounting points are wider than the shock eyelets. When purchasing a new shock it is important to be aware that you may also need to order the appropriate mounting hardware.  Nothing ruins a weekend of riding more than not having the correct hardware to install your new shock

The type and specifications of mounting hardware will be determined by the specific frame design from your bicycle manufacturer. Various options are available, depending on whether the bike employs bushings in the shock, among other factors.

Related Image

Mounting hardware comes in a host of sizes

Bearing Mounts

Some manufacturers will also opt for bearing mounts instead of utilizing a DU bushing and mounting hardware. This will be specified by the bicycle manufacturer for the most part. The bearing mounts from RockShox fit in the same dimensions as 8x30mm hardware. They are larger than standard mounting hardware, so it is important that this is approved by your bicycle manufacturer.

Coil or air?

There is a lot of debate about Air or Coil and we are not here to convert you either way. When it all boils down to it, your bicycle manufacturer will recommend whether a coil or air shock, will work best with your bike. Some bikes support both and in those instances, it may be trying both to see what suits your riding style.

As the coil on coil shocks are a larger diameter that travels the entire length of the shock they will require more space within a far as to not contact tubes of the frame. There are some specifics when it comes to coil shocks in terms of fitment. For the sake of this article only talking about 2023 product onwards, please review the below:

Bike that need specific coil shocks:

  • Commencal Meta TR Power
  • Specialized Kenevo

 These two bike models are only compatible with a Super Deluxe Air shock OR a 2023 Super Deluxe Coil shock WITH a steel shaft. 

Related Image

Coil or Air can be a polarizing topic to talk about at times

Shock Dimensions

Shock dimensions are crucial for a proper fit. Once you've determined your eye-to-eye, stroke, and mounting hardware requirements, you can delve into shock dimensions. These engineering drawings reveal potential clearance problems with your frame. Given our long history, we can't cover every shock we've made. Instead, we'll concentrate on RockShox products from 2023 onwards, as these are current and available in the market. This focus will assist you in ensuring compatibility and a smooth upgrade.

2023 Deluxe C1

Light on ounces and heavy on capability, Deluxe Ultimate adds a touch of luxury to the latest uber-capable trail bikes. From the new DebonAir+ air spring that offers more volume tunability than ever to the damper’s independent Low Speed Compression and Rebound adjustments—every aspect was carefully designed to maximize tunability into a streamlined, minimalist package. The power is in your hands to dial in the perfect-for-you, perfect-for-the-trail-ahead settings. A custom-tailored ride, every time. 

A condensed version of our Deluxe, Super Deluxe and Super Deluxe Coil is pictured below, but we suggest accessing the  RockShox User Specification for Shock Fitment  to confirm sizing in greater detail.

The Deluxe comes in the following models:

  • Deluxe Ultimate (Aftermarket & OEM)
  • Deluxe Select (OEM Only)**
  • Deluxe Select + (OEM Only)**

**OEM stands for Original Equipment Manufacturer. This means that these models of shocks will come specified on key models from bicycle manufacturers, but the shock model itself is not sold as an off-the-shelf solution for riders. The only off-the-shelf options are the 'Aftermarket' designated shocks.**

Related Image

All measurements are in mm

RC2T Damper

The RockShox RC2T reservoir is used in a few shocks, including the Super Deluxe C1, Super Deluxe Coil B1, and Vivid Ultimate. We have listed The RC2T reservoir for a couple of reasons. Firstly, this reservoir is used on Vivid, Super Deluxe and Super Deluxe Coil. This can be a great first check for fitment to see if your bike will accept a reservoir shock as this damper spreads across numerous shocks. Secondly, the reservoir is sold as a spare part that can be upgraded to the above-listed shocks, so it's important to note if you are upgraded to check that the dimensions will also fit.

Likewise, if your Select or Select+ shock is being upgraded to the RCT2 head, it is important you measure to see if this reservoir damper system will actually fit your frame. This is available as a spare part for Vivid and Super Deluxe. 

Related Image

RC2T Damper runs across Super Deluxe, Super Deluxe Coil & Vivid Ultimate rear shocks. All measurements are in mm.

2023 Super Deluxe C1

Super Deluxe Ultimate is the smart bet for the podium. Packed to the hilt with fine-tuning adjustments that meaningfully improve suspension performance, it’s the most advanced shock we’ve ever made. Pioneering one of the most impactful innovations in damper history, the new RC2T damper allows for 100% independent High and Low Speed Compression adjustments. The arsenal of elite technology rounding out Super Deluxe Ultimate is grounded in the philosophy that, at the highest level of capability, the extra ounce of performance and customization is what it takes to capture the crown.  

There are two air can options for these: Linear and Progressive. The Progressive can is the widest can and is pictured in the 2D drawings below. The linear will offer more clearance than the Progressive Aircan.

The Super Deluxe comes in the following models:

  • Super Deluxe Ultimate (Aftermarket & OEM)
  • Super Deluxe Select (OEM Only) **
  • Super Deluxe Select+ (OEM Only) **

Related Image

Super Deluxe Coil B1

Performance to match the most demanding riders out there. The ground up, all-new Super Deluxe Coil Ultimate is a work of art with no feature spared. Equipped with an entirely new chassis, 100% independent High Speed and Low Speed Compression adjustment, increased bushing overlap for improved small bump performance, and optional Adjustable Hydraulic Bottom Out to tailor that bottomless feel. It’s the unmistakable feel of coil, evolved. A coil shock packed full of premium technology that gives you a hand in painting the experience of how you ride. 

The Super Deluxe Coil comes in the following models:

  • Super Deluxe Coil Ultimate (Aftermarket & OEM)
  • Super Deluxe Coil Ultimate Coil DH (Aftermarket & OEM)
  • Super Deluxe Coil Select (OEM Only) **
  • Super Deluxe Coil Select + (OEM Only) **

Related Image

Vivid Ultimate C1

Big, bold, and built for pure downhill performance, Vivid Ultimate has unmatched tunability and damping for confidence in technical terrain. With an air spring that acts like a coil, this is the latest chapter in Vivid’s legacy of reliability and rock-smashing suppleness. This premium rear shock is built to push the limits on everything from downhill to E-MTB to enduro bikes. A condensed version of our Vivid fitment is pictured below, but we suggest accessing the RockShox User Specification for Vivid to confirm sizing in greater detail.

Vivid is available in the following models:

  • Vivid Ultimate (Aftermarket & OEM)
  • Vivid Ultimate DH (Aftermarket & OEM)
  • Vivid (OEM) **
  • Vivid Select (OEM) **
  • Vivid Select + (OEM) **

Related Image

Measure Twice

When you have your shock it is important to cycle the suspension and make sure that there is no contact with the frame. We do this in the same way that we checked for space in the first few steps. It is important to let the air out of the shock and softly compress the suspension by hand. Below is a video on how to do so:

Hot tip: If there is low clearance, use a piece of paper  between gaps to see if there's contact between the frame and the shock.

Known Fitment Issues

As a leading suspension brand, it's impossible for us to ensure compatibility with every existing frame and size combination.  If you're considering a particular RockShox rear shock, we encourage you to consult your bicycle manufacturer. They may have insights into whether your frame can accommodate the specific shock you're interested in.

While we cannot cover all scenarios, we'd like to highlight that certain frames, particularly in specific sizes, might encounter challenges with certain shocks and potentially other sizes within that same model may not. It's crucial to exercise extra caution in such cases and seek clarification from your bicycle manufacturer for a precise assessment.

RC2T fitment issues: Super Deluxe, Super Deluxe Coil and Vivid Ultimate

  • 2020+ Specialized Demo - The reservoir may contact and damage the frame when the suspension is compressed .
  • 2020+ Cannondale Jekyll -  Low Speed Compression dial will contact frame in the  suspension cavity.   It is also difficult to inflate the shock. No option is optimal. 
  • 2020+ Canyon Strive - Threshold switch contacts frame when compressed. Currently the Canyon will only fit with a Ultimate DH head fitted to a 230x65 Vivid (Part Number: 11.4118.088.009)
  • 2020+ Orbea Wild - Low Speed Compression dial and Threshold Switch contacts frame 
  • 2022+ Ibis Oso - Threshold Lever can contact frame 

Vivid Specifically

  • 2020+ Specialized Kenevo - issues with air can size under bottom out
  • 2022+ Transition Relay
  • Trek Rail Gen 3 & Gen 4: Air can fitment issue
  • 2021+ Forbidden Dreadnought: Air can fitment at 40% + travel
  • Transition TR11: We have seen fitment issues on Medium and Large sizes 
  • 2023+ Giant Trance X Advanced E+ Elite: air can contact with the seat tube
  • 2018+ Lapierre Spicy - Vivid air can does not fit in the shock tunnel 
  • Santa Cruz Hightower 2 and 3: Issues with fitment in shock tunnel
  • Santa Cruz Heckler 8: Issues with fitment in shock tunnel
  • Transition Patrol Carbon: Issues with fitment in shock tunnel

Advanced Compatibility: Shock Tunes

Shock tunes refer to the High Speed Compression and Rebound circuits within the shock. We won't dive into any 'custom tuning'  but rather we'd like to highlight that there are  internal changes made to the shock by the bicycle manufacturer.

Many aftermarket RockShox rear suspensions come with a standard shock tune that falls in the middle of the range for both Rebound and Compression. If you want to fine-tune your shock to your bike's specific needs, it's advisable to obtain shock tune information from your bicycle manufacturer, as mentioned at the beginning of this article. If you wish to make these adjustments, contact your local bike shop, as it's a job best done by a professional. 

The  Piston Tuning Guide  is an online resource online and instructs riders to customize their shock to their specific requirements from their bicycle manufacturer.

Bike specific Vivid Ultimate shocks

RockShox created a host of Vivid shocks for specific bikes on launch day. These shocks will have specific Compression, Rebound, mounting and air volume specifications to suit their respective bike. These are available and are specifically tuned to the following bikes:

  • CANYON SPECTRAL, 2018+, Part number: 00.4118.421.032
  • COMMENCAL CLASH 2019+ Part number: 00.4118.421.033
  • COMMENCAL META POWER SX 2020+, Part number: 00.4118.421.034
  • COMMENCAL  META SX 2022+, Part number: 00.4118.421.035
  • GIANT TRANCE 2019-2021, Part number: 00.4118.421.057
  • NORCO SIGHT 2017-2019, Part number: 00.4118.421.058
  • NUKEPROOF DISSENT 2020+, Part number: 00.4118.421.036
  • NUKEPROOF MEGA 2021+, Part number: 00.4118.421.037
  • ROCKY MOUNTAIN ALTITUDE L+XL   2021+, Part number: 00.4118.421.060
  • SANTA CRUZ BULLIT 2021+, Part number: 00.4118.421.044
  • SANTA CRUZ MEGATOWER 2 2022+, Part number: 00.4118.421.045
  • SANTA CRUZ NOMA6 2023+, Part number: 00.4118.421.046
  • SANTA CRUZ   BRONSON 2023+, Part number: 00.4118.421.062
  • SCOR 4060 LT 2023+, Part number: 00.4118.421.061
  • SPECIALIZED   ENDURO 2020+, Part number: 00.4118.421.040
  • SPECIALIZED   LEVO SL  (S2-S6 ONLY)  2022+, Part number: 00.4118.421.042
  • SPECIALIZED   STUMPY EVO CARBON  2021+, Part number: 00.4118.421.043
  • SPECIALIZED   LEVO (S2-S6 ONLY)  2020+, Part number: 00.4118.421.041
  • SPECIALIZED   KENEVO SL 2021+, Part number: 00.4118.421.063
  • TRANSITION REPEATER 2022+, Part number: 00.4118.421.047
  • TRANSITION SPIRE 2021+, Part number: 00.4118.421.048
  • TREK SESSION 2022+, Part number: 00.4118.421.050
  • TREK SLASH 2021 – 2023; Part number: 00.4118.421.051
  • YT CAPRA 29 2018+, Part number: 00.4118.421.054
  • YT   DECOY 29/MX 2019+, Part number: 00.4118.421.055

If you were not able to find the exact shock part number, refer to the steps above and have the shock tuned for your bike via a suspension professional. We have the Vivid Internal Shock Tunes available publicly. 

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Fox float x2 mounting hardware for 2019 trek slash 9.9

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Trek rail rear shock upgrade ideas please

  • Thread starter Dano78
  • Start date Jun 27, 2020
  • Jul 20, 2021
Stray cat said: How does it work? Much difference over the stock one? Thanks Click to expand...

5362EB48-1EBB-44BD-8A06-B149A2D38593.jpeg

Asnowmobiler

  • Jul 22, 2021

724189BF-06D4-49B7-80E7-C6CFA2FC407B.jpeg

E*POWAH Master

Asnowmobiler said: I picked up a used dhx2 and think I need some mounting bushing. I thought I read that the ones from my rock shox just needed to be pressed out and installed into the fox shock but the center part of the bushings is way too larg. View attachment 67103 View attachment 67104 Click to expand...

1626957759629.png

The outer part of the black sleeve fits perfectly into the fox shock, so I'm thinking it's going to be loose if I just use the DU bushing. In the one picture, I inserted the black portion into the fox. Does something else go on the fox shocks along besides the DU and the mounting shaft? The center part of the black sleeve is stepped up and larger.  

Doomanic

🛠️Wrecker🛠️

You need DU bushings with an ID to match the steel shaft and an OD to match the shock eyelet.  

That's what it looks like, I was hoping I was wrong. Where the heck do I buy them?  

Good question. I couldn't find any with a quick google. I would suggest contacting the seller of the shock.  

Bought used. Got what I hope ends up being a good deal.  

Asnowmobiler said: The outer part of the black sleeve fits perfectly into the fox shock, so I'm thinking it's going to be loose if I just use the DU bushing. In the one picture, I inserted the black portion into the fox. Does something else go on the fox shocks along besides the DU and the mounting shaft? The center part of the black sleeve is stepped up and larger. Click to expand...

2D0DAB9B-FD2A-44E6-BA3F-B3BF63C3E564.jpeg

I think our bikes came with different shocks, maybe that’s the issue. Select + on mine. I’ll press it out and give it a try but it looks too big.  

8FDA3CD6-6DFA-421D-A393-65423810E384.jpeg

Asnowmobiler said: I think our bikes came with different shocks, maybe that’s the issue. Select + on mine. I’ll press it out and give it a try but it looks too big. Click to expand...
Black8917 said: Putting all the info I found in one post. Trek rail 9.8 2021 Large Came stock with trunion rockshox shock which started leaking in a week. Installed fox dhx2 230x65. Cannot run in low setting seat post hits. Reservoir clears in both settings. bolts are 1mm shorter than shock + spacers Fox mounting hardware. Upper shock bolt is 54mm shock width + 2x8mm spacer plus linkage = 70mm but 69mm bolt Bolts TR540755 TR599900 hardware • Upper: 10mm x 54mm 803-03-311 • Lower: 10mm x 40mm 803-03-329 View attachment 66994 View attachment 66995 View attachment 66996 View attachment 66997 View attachment 66998 View attachment 66999 Click to expand...

Oh crap, now I see what you’re saying. I thought that thicker part went all the way trough. Now I see, it3 parts.  

I have the mounts swapped over thank you for all your help, it was priceless.  

  • Jul 23, 2021

487C135C-3CB9-4E91-B7F2-2C84FCF3DE6F.jpeg

  • Jul 24, 2021

IMG_2210(1).jpg

Asnowmobiler said: hitting the can on the bottom before it’s all the way in. Med. Rail 9.7 Click to expand...

rail7dvo.png

Well-known member

So I am trying to figure out what the consensus is on replacing stock shocks… What is Goldilocks for aggressive rides and long missions? I find the RS thrushaft to be really poor…as a pedaling platform…the damping is mediocre…etc. But what gets this bike up to its full potential? X2 or a Coil? And does increased travel make this a better bike on big hits and drops? (The subpar Rail suspension really has me considering moving to a Levo3, but I love the CX4 motor…it is more capable than the Brose 2.2 which I have about 100 miles on demo. If I could get the suspension dialed, I would likely stick with the rail…getting some additional travel would be a huge plus, too). I have a Large Rail 9.9.  

trek shock mounting hardware

  • Jul 25, 2021

I love my 165mm dhx2 with 180mm zeb ultimate smash pot. So much better than stock. All I ride is DH PNW  

  • Oct 13, 2021

Has anyone tried to set up new Fox DHX coil shock? Piggyback looks like bigger than Fox DHX2  

Nuckingfuts

  • Oct 17, 2021

81539683-C037-4DAC-ADFF-ADC629F5BE0F.jpeg

Nuckingfuts said: After trying to make a Rockshox Super Deluxe coil work with no luck, I ended up going with a Fox X2 and am super happy. Super plush and a ton of adjustment. Fox 38 or 2:1 Charger up front next. View attachment 73983 Click to expand...
Zorg said: Hi, Off topic , but what type and size are those rotors ? Thanks Click to expand...
  • Oct 18, 2021

203 front , not 220 ? I thought all rail , or at least 7 and up, come with 220 front rotor. So 203 are enough as of trek. That’s nice to know  

Zorg said: 203 front , not 220 ? I thought all rail , or at least 7 and up, come with 220 front rotor. So 203 are enough as of trek. That’s nice to know Click to expand...

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Trek Slash 9.7 2019 19.5" Coil shock conversion

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Hello, I'm looking to remove the RockShox Deluxe RT3 RE:aktiv shock from the bike and put in a RockShox Super Deluxe Ultimate Coil RCT Shock instead. ( RockShox Super Deluxe Ultimate Coil RCT Shock ) Was wondering if anyone had any experience with this sort of conversion. Do I stick with 230 x 57.5? I've read some in some forums that people have used 230 x 60. Do I need any mounting kits/hardware? Any help is appreciated!  

bigb73

Trek Trunnion Mount Adapter Kit

www.dirtlabs.com

Thanks!  

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  5. RockShox 1/2" Eyelet Shock Mount Hardware,M10xUpper(Trek Slash

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  6. Trek Trunnion Mount Adapter Kit

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  1. Trek Rear Shock Pin-to-Trunnion 16mm Head Hardware

    Trek 2017-2019 Fuel EX Carbon Re:Aktiv with Thru Shaft Chainstay. $549.99. 1 of 22. Enhance your cycling experience with Trek Shock Mount Bolts. Find the best gear at trekbikes.com and your local Trek retailer. Shop now!

  2. Trek Shock Guide

    You can find Trek bolts here. Shock mount hardware is available here. FUEL EX . HARDWARE. MY. Start. MY. End. Travel. Eye-to-eye. Stroke. Mount-kit. U/F. Mount-kit. L/R. Notes. 2005. 2006. 100. 165. 38. 6x40. 6x21.8 ... As production of these shocks is limited to Trek Frames this product is less well supported in terms of spares and parts than ...

  3. Rear Shock Mount Kits

    RockShox Rear Shock Mounting Hardware - 3-Piece, 1/2", 10 x 50.0, Offset, Trek Carbon — $16.44. Rear Shock Mounting Hardware Designed to fit RockShox rear shocks, except the BAR (contact SRAM for 12mm BAR hardware) Compatible with most 1/2"x1/2" rear shock eyelets.

  4. Shock Hardware Database

    In almost every case, yes you can install mounting hardware from one brand into a different brand of shock. Eyelet sizing in rear shocks is pretty standardized these days, and almost every brand uses an eyelet with an inner diameter of 15mm and width of 12.7mm (1/2"). If you have a modern shock, with an approximate model year of 2017 and newer ...

  5. A Complete Guide To MTB Rear Shock Mounting Hardware

    Grab some calipers, or a fine ruler with millimeters, and measure your current shock's installed mounting hardware or measure the frame and bolt. If you grab the shock with hardware installed, simply measure the internal diameter of the hole where the bolt goes, and then measure how wide the mounting hardware is from side to side.

  6. Rear Shock Mount Kits RockShox

    RockShox Rear Shock Mounting Hardware - 3-Piece, 1/2", 8 x 20.0 ... 3-Piece, 1/2", 10 x 50.0, Offset, Trek Carbon — $16.44. Rear Shock Mounting Hardware Designed to fit RockShox rear shocks, except the BAR (contact SRAM for 12mm BAR hardware) Compatible with most 1/2"x1/2" rear shock eyelets. Consult manufacturer for compatibility 1 kit ...

  7. Trek Shock Upgrades

    Commonly used for the lower shock mounting bolt on Trek Rail 2020/21, Fuel EX Carbon (2017). Used in conjunction with 50mm (49.78) mm x 10mm Offset mounting hardware, or 40mm x 10mm hardware. Trek part # 540756 (16mm head for earlier frame), or 18mm head for later (2021+) frames. Trunnion to Pin 59mm (18mm head) Available here.

  8. Trek Rear Shock Pin-to-Trunnion Hardware

    Product Description. Please see the below chart to correctly identify which bolt you need when replacing your Thru Shaft shock with a standard eyelet shock. Any questions, please give us a call. Trek Slash - My21. Upper Shock Axle - 599898. Lower Shock Axle - 5258210. Trek Slash. Upper Shock Axle - 540755. Lower Shock Axle - 540755.

  9. Trek Shock Mount Fastener

    Bike rear suspension; Trek Shock Mount Fastener; Trek Shock Mount Fastener; We'll take care of you. Period. ... It's the Trek way. 30 Day Unconditional Guarantee. Ride it and love it, or we'll take it back. If for any reason you're not 100% happy with your trekbikes.com purchase, you can send it back within 30 days for a refund or exchange - no ...

  10. RockShox Rear Suspension Fitment

    Mounting hardware is utilized for standard mounts and is entirely determined by the frame manufacturer. Its purpose is to enable the shock to fit into a frame where the pivots or mounting points are wider than the shock eyelets. When purchasing a new shock it is important to be aware that you may also need to order the appropriate mounting ...

  11. 2017/18/19 Trek Remedy Shock Mount hardware

    2017/18/19 Trek Remedy Shock Mount hardware. Looking for an additional shock top mount pin for my 2018 Trek Remedy 7. Im having a lot of trouble trying to source this however. I can find the lower shock mount hardware easily from Rockshox, but as yet have not been able to find what this type of mount or pin is, Treks dealer page didn't seem to ...

  12. Fox float x2 mounting hardware for 2019 trek slash 9.9

    - 2x TREK Shock Mount Kit - TREK Part #: 540755 (These are needed due to changing from upper and lower trunnion mount, to the usual eyelet mounting. ... - Upper FOX shock mounting hardware - 10mm ...

  13. How To Remove And Install MTB Rear Shock Mounting Hardware

    Have you ever had the bolts that hold your suspension goes wobbly on your full-suspension mountain bike? Well, that's probably because of the bushes that pre...

  14. Trek rail rear shock upgrade ideas please

    Trek rail 9.8 2021 Large Came stock with trunion rockshox shock which started leaking in a week. Installed fox dhx2 230x65. Cannot run in low setting seat post hits. Reservoir clears in both settings. Fox mounting hardware. Upper shock bolt is 54mm shock width + 2x8mm spacer plus linkage = 70mm but 69mm bolt.

  15. Trek Slash 9.7 2019 19.5" Coil shock conversion

    Trek Trunnion Mount Adapter Kit. The latest craze in the never-ending shock evolution has been the rear shock trunnion mount. The use of threaded bolts requires a more complex reducer hardware. This hardware kit allows users to swap out thru-shaft, and other trunnion mount shocks, for a standard shock.

  16. Why Moscow is a 'truly cinematic' city to explore

    The city crackles with culture against the backdrop of a truly cinematic setting; the soaring spires of the former Hotel Ukrainia and Moscow State University coupled with the space-age swagger of ...

  17. How to get around Moscow using the underground metro

    The Metro is a monument to the Soviet propaganda project it was intended to be when it opened in 1935 with the slogan "Building a Palace for the People". It brought the grand interiors of Imperial Russia to ordinary Muscovites, celebrated the Soviet Union's past achievements while promising its citizens a bright Soviet future, and of course, it was a show-piece for the world to witness ...

  18. Walking Tour: Central Moscow from the Arbat to the Kremlin

    This tour of Moscow's center takes you from one of Moscow's oldest streets to its newest park through both real and fictional history, hitting the Kremlin, some illustrious shopping centers, architectural curiosities, and some of the city's finest snacks. Start on the Arbat, Moscow's mile-long pedestrianized shopping and eating artery ...

  19. Trek Shock Mount Fastener

    Trek Shock Mount Fastener. 1 Reviews / Write a Review. £8.99. Model W273930. Retailer prices may vary. Trek proprietary suspension hardware. Compare. Colour / Black. Select a color.

  20. Tools & Hardware in Moscow

    Kiber-2000 We provide our buyers with the various tool, industrial equipment, the welding equipment, economic and garden stock. Address: Kolskaya str. 1, of. 417 | Phone: +7 (495) 189-2796