what is trek knock block

Knock Block Headset Alternative (Easy & Simple)

  • by Johnson Li

Here’s how to enjoy the benefits of Knock Block functionality without the hassle of having to

  • fit a special stem or
  • install too many bits and pieces.

We’ve come up with a simple integrated headset solution to block those knocks —Patent Pending 108203231.

Everything is explained in the video. But we have also provided the details in this post if you’d prefer to read on.

NOTE that there are some details included here that are not in the video .

Knock Block means to ‘block’, or prevent, ‘knocks’ to your mountain bike downtube.

If you have a straight downtube, the tops of your forks can turn back into it … harshly. A dent in aluminum. Probably a crack in carbon .

Bye bye carbon frame.

Design success here really comes down to robustly and reliably

  • limiting the angle of movement yet
  • allowing enough movement

for a rider to experience no limitation to the usual range of movement when on the trail.

Less is certainly more when it comes to a knock block alternative.

What’s In the Headset?

Let’s take a detailed look at each component making up the headset.

Knock Block Alternative Package 1

The Package

When you first meet this new headset it will be packaged as pictured.

All FIRST’s headsets are plastic wrapped with the top cap and star nut (if applicable) nestled on top.

~Check out the Headset with the built-in Spacer for fine-tuning your bike’s stack height~

Unless you are doing a fresh install, you won’t need the star nut. Unscrew the star nut from the top cap tension bolt and put it away .

A spare star nut may come in very handy even if you don’t need one for your existing fork.

Your currently installed star nut can be pushed further down inside the steerer should it pose problems. A new one can be installed where the old one was positioned.

So, keep that star nut where you can find it.

Knock Block Alternative Headset Parts

From left to right.

The knock block alternative dust cover differs from standard integrated headsets in two ways.

Firstly the rear bolt.

This functions to hold the dust cover firmly over the parts installed underneath (bearing cup and bearing … more on that in sec …).

A top cap is installed just as with any similar headset. Remember the top cap “pulls” the whole headset assemblage together

~ INTEGRATED HEADSETS —Everything You Want to Know—(Installation, Removal …) ~

But the bolt ensures the dust cover will not rotate, even slightly, when under pressure. What pressure …?

… the pressure from the next part (3rd from left).

This cup sits inside the headset integrated cup. The boss, visible there at 1 o’clock (we’ll have a closer look in a jiffy), fits up inside the dustcover.

The piece in between these two (2nd from left) is the tool that assists pressing the cup into the top of the headset. On the far right we have the top (sealed) bearing.

Below is the crown race and the crown race bearing. Neither is strictly a part of this angle-limiting setup so you could have any dimension you want.

Bearing Cup with its Dustcover

The Bearing Cup

Let’s have a closer look at the bearing cup and the dustcover. They are the key components of this system.

The boss on the bearing cup (right) fits into a machined groove inside the dustcover (left).

Bearing Cup Boss

A close-up look at the bearing cup with the boss.

The lower edge is 45° and fits directly into the headtube’s integrated cup.

Knock Block Headset Technical Diagram

The specific dimensions in detail. On the diagram, “2” is the dustcover; “5” is the bearing cup. (The bearing is #4).

The centerline should line up as closely to the headtube’s center … imagine a line perfectly bisecting the headtube looking straight-on at the front.

You can see the centerline in the diagram dividing each part.

The cup’s outer circumference serrations hold the cup firmly in the headtube’s cup. The boss will be subject to hard impacts during its lifetime, potentially causing the cup to shift each time.

An exact fit to the headtube cup together with the serrations ensures it does not move.

Bearing Cup

The cup’s design mirrors the headtube cup design. The bearing slots snugly into it.

The Dustcover

The other indispensable piece—the dustcover with the groove that accepts the cup’s boss.

Dustcover Machined Groove

An imaginary line running from the gap at the back bisects the groove. There is 65° of turn available to the left and right. 130° in total.

Dustcover On Bearing Cupt

When you have installed the bearing cup into the headtube, the dust cover aligns with the cup. Just line ‘em up.

As long as the bearing cup is installed at the right angle, the angle limit will be exactly the same on both sides—65 ° .

Knock Block Alternative Tool

The tool enables you to press the bearing cup into the headtube. Okay … you might use a hammer to bang it in, although we would not advise this.

Far better to use the right tool to exert gentle pressure —very gentle pressure is all you need—on insertion.

Tool Top View

The tool’s upper surface is perfectly flat. It fits flush with a headset cup press tool and makes for super-easy installation.

Tool Machining

The gap up the top accepts the boss. The bearing cup fits snugly into the tool here.

Knock Block Tool Closeup

The tool can rotate slightly from side to side—the boss’s fit into the slot is not exact, as it does not need to be.

The key point is for the bearing cup to be centered exactly within the headtube . The tool only assists installing the cup. You just have to make sure you have it positioned correctly.

Bearing Cup And Tool

The tool fits over the cup; the cup’s upper lip slots in exactly with the tool’s edge.

Knock Block Alternative Headset

So there you have the headset kit.

The relationships that make this knock block design work are between:

  • the bearing cup
  • the dustcap

These two components are the heart of this simple setup — we’ll show how they work together in the rest of this post.

The bearing cup’s installation is key to everything. So let’s take a look at the best method to get it seated in the headtube.

Headset Cup Press Tool

Installing the Bearing Cup

A headset cup press tool is what you need. Be aware that this tool is cumbersome and takes a little getting used to.

So if you purchase this new knock blocking headset from a bike shop, get him or her to install it for you.

A headset cup press tool is for pressing bearing cups for threadless headsets.

Our use of it here is novel since the whole idea of an integrated headset is that the bearings seat directly into the cups built into the headtube. That’s still the case here, except for the addition of an extra bearing cup.

The tapered ends are designed to accept almost every size of cup.

Slide one cup into position at the top—that end is fixed to the shaft. Place the other cup on the other piece. I’ll just summarize here … we’ll get into the details of how we use it to install the particular bearing cup here in a sec.

You insert the shaft through the headtube—the tool compresses the cups into the headtube, top and bottom as you turn the handles.

Note that considerable pressure must be exerted to fully seat the cups the required several centimeters inside the headtube.

The bearing cup we are installing here doesn’t need that degree of force though. The headset cup just needs to be seated a few millimeters into the (already) integrated cup. Not far at all.

The first step: slot the tool and the bearing cup together.

Fit To Tool

Then place the combined tool and cup on the headset press’s locking end. In this case the press cup’s smallest step is just right.

Tool Installed

Then position the press-cup-with-headset-tool so the bearing cup to be installed is sitting square inside the headtube lip a fraction of a millimeter.

If you were performing a standard headtube cup install, this piece would be fitted at the bottom, fitted upwards into the headtube. The shaft along with the other cup would be inserted from the top.

For this particular situation, an upside-down solution works.

Tool Shaft

Insert the shaft to the nearest detent. Slide the lock-piece across. Tighten the lock-piece’s locking hex bolt.

You’ll find the whole assemblage is a little sloppy, which is perfectly normal. Just turn the handle to take up the slack and you are ready to install the bearing cup.

Bearing Cup Alignment

Saying again for emphasis. This line must be centered on the headtube’s center within a degree. One degree of tolerance is barely tolerable, though. Once you press in the bearing cup, there’s no going back to adjust the angle. Getting the line dead center takes a little patience.

Correctly installed, you’ll get the full 65° on each side (65°-65°130°), not, say, 63°-67°! Or something like that.

Headset Cup Press Tool

Very gentle pressure C/O a slight turn of the handle does the job.

The headset press cup evenly presses the bearing cup into the headset’s integrated bearing cup.

Remove the tool to complete the installation (bearing and dustcover).

Release the pressure, turn the handle enough to loosen up the headset cup press tool’s press cup. Slide the locking-catch back across and slide all pieces free of the headtube.

Install Bearing & Dustcover

You should have the bearing cup sitting in the headtube’s integrated cup.

Bearing In Cup

The cup should be sitting evenly in the cup. Perfect positioning will happen automatically as long as you use the headset cup press tool correctly.

You can now seat the bearing into the freshly installed cup.

Coating a smear of grease in the cup and around the bearing is advised.

The tolerances machined into this product are extremely precise. But there is always going to be slight movement during use. Grease is insurance against creaking.

Creaking can drive many riders batty. Cases where mild, sensitive riders with super-high EQs have been turned into raving beasts by persistent squeaks and creaks are documented …! Quite apart from being driven mad, you don’t want to increase the places where creaking can occur. Finding the source of other creaking components (you’ll definitely have this issue sooner or later) becomes that much harder.

Many bike shops advise slapping plenty of grease on. A lot of grease repels water, providing great protection for your bearing which is not a bad thing, even though the bearing is sealed and already well protected from the elements..

The more grease though, the more dirt that piles up over time. A light smear insulates against water and creaking.

The fork can now be installed.

Dustcover

Once the fork is sitting snugly up against the crown bearing down below, the dustcover can go on.

Install Dustcover

You will find this unit’s dustcover fits very snugly around the steerer. Enough to almost hold a heavy fork in most cases—only minimal support is necessary. But take care that the fork does not drop out all the same.

Push the cover down over the top of the cup and bearing.

Match the line on the bearing cup boss with the line on the cup. Providing you have installed the cup accurately, aligning these marks ensures 65° of rotation to the right and left.

Re-Install Stem

Tighten the dustcover bolt. 3nM torque setting should be fine. Maximum 5nM.

Tighten Dustcover Bolt

Install the stem.

5nM Preset Torque Tool

As an aside, a preset torque tool such as this one from Synpowell for the home workshop is handy for a job like this. You are limited to 5nM for a tool like this. But 5nM is a reliable setting and, besides, measuring beats guessing. Nothing beats a torque wrench with a range 0-25 or 30nM though.

For the demo here, we are not cutting the steerer so won’t be showing the top cap installed and tightened. Nothing out-of-the-ordinary with the top cap here anyway.

Rotation Left

When completely installed and operational, this is what you will see.

A slight gap where the dustcover sits against the newly installed bearing cup.

The fork is rotated to the right, at the complete limit of 65°, the line indicating the center position of the bearing cup, technically zero degrees if you’ve installed it accurately.

The line has no particular function here. Just remember that the line must match the bearing cup boss’ line.

Rotation Right

65° to the left.

Limit Left

The view from the top when turned to the left.

Didn’t have a mountain bike fork available for this demo so a road bike fork was used. The only difference is that the fork would not impact the downtube. All the techniques and principles covered here apply in equal measure.

Limit Right

The view from the top when turned to the right.

So there you have the lastest design.

Let us know what you think in the comments below.

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2021 Trek Slash gets more travel, custom thru-shaft shock, Knock Block 2.0 & hidden storage

2021 Trek Slash, whip!

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With a burly-looking frame, slack steering, 160/170mm’s of travel and 29” wheels, the 2021 Slash is certainly a full-on enduro machine. The Slash was an early player in the long-travel niner department, and for 2021 it’s had quite the design overhaul.

The updated frame boasts new geometry, a revised linkage with more rear travel, and includes Trek’s take on down tube storage. Trek also fit this new frame with a custom shock: The new RockShox Super Deluxe Ultimate Thru-Shaft was designed for the Slash, and offers an adjustable open mode to help control rider inputs.

2021 Trek Slash frame and suspension:

2021 Trek Slash, angle, on trail

The 2021 Slash is offered in a bunch of carbon build options and one aluminum model. The carbon frame’s weight is 2450g/5.39lbs, which Trek claims is almost a pound lighter than ‘the competition’. Including the rear shock the carbon frame weighs 7lbs, and the aluminum frame/shock weighs 9.5lbs.

The Slash has grown in travel and seen its suspension tweaked for 2021. The bike now provides 10mm more squish in both ends, with 160mm of rear travel and 170mm forks (180mm forks are OK if you want ALL the travel).  As for tuning, Trek adjusted the position of the Slash’s main pivot to achieve better pedaling efficiency, and they set it up with a specific new shock…

2021 Trek Slash, rear shock

The Slash’s Super Deluxe Ultimate Thru-Shaft shock was co-developed by RockShox and Trek, who had similar ideas in mind about reducing friction and improving a shock’s ability to control rider inputs. The thru-shaft shock boasts an improved shim damper, an oversized thermal compensator and a tunable open mode with three settings.

The shock’s open mode settings are Plus, Minus, and Zero, and they adjust the low-speed compression. Zero serves as the middle setting, Plus adds a bit of compression for flowy or jump trails, and Minus offers the softest ride for tackling rough terrain. In stock setup the shock has no spacers installed, but both the positive and negative chambers can be tuned by adding them.

2021 Trek Slash, shock in front triangle

Should you wish to swap out the rear shock, the Slash is compatible with several other models of air shocks, and its linkage will work well with a coil shock too. You may have noticed Trek isn’t running a RE:aktiv shock on this year’s Slash: In short, they say they’re happy enough with the Super Deluxe Ultimate Thru-Shaft’s damping.

Knock Block 2.0!

2021 Trek Slash, Knock Block 2.0

Trek has also updated their Knock Block system, and the Slash comes with the Knock Block 2.0. The significant thing to note is that the new Slash frame will not come into contact with your fork crown, so you can remove the Knock Block 2.0 if desired. Trek kept it there because it can save you from ripping out cables/hoses in a crash, something racers would likely appreciate. Since the frame cannot be contacted, the Knock Block 2.0 offers a much wider steering range than the initial version, allowing for 72 degrees of swing instead of 58 degrees.

2021 Trek Slash, down tube storage

Trek has included their version of down tube storage on the new Slash, and they’ve managed to include it on their aluminum frames as well as the carbon models. Bontrager offers a suitable tool roll which has pockets for carrying a tube, tire levers, Co2 canisters and an inflator head. Though Trek shows them in some photos, the tool rolls are an aftermarket accessory and are not included with the bikes.

2021 Trek Slash, Bontrager 34.9 dropper post

The Slash now runs a 34.9mm diameter dropper post ( Bontrager’s updated Line Elite 34.9 ). Trek jumped to the larger diameter as it makes for stronger posts with less side-to-side play and stiction. With an adjustment to the shock position, Trek’s 2021 frames offer 45mm more insertion depth for dropper posts. Mediums come with 150mm, Larges get 170mm, and XL’s get Bontrager’s new 200mm posts. While some brands are putting 170mm’s in medium frames (and it would be nice to see that on this bike) Trek did confirm a 170mm post will fit into a medium.

2021 Trek Slash, derailleur hanger, Boost 148 spacing

Other fitments include Boost 148mm rear spacing, and instead of last year’s press-fit BB, there’s a trusty BSA 73mm threaded BB shell with ISCG mounts. The frame runs a 55mm chainline, and will fit up to a 34t chainring. Trek has also adopted SRAM’s universal derailleur hanger for the new Slash. Tire clearance maxes out at 29×2.5”, and Trek does not intend for people to mullet this bike – It was built to be a niner!

2021 Trek Slash, down tube protector

The Slash features Trek’s Control Freak internal cable routing, and between the port plugs and zip-tie attachments found inside the storage compartment, there’s no need for internally sleeved routing. Other finishing touches include a removable, full length, dual-density downtube protector for shuttling or fending off rock strikes, a chainstay protector, and enough room for a water bottle on all frame sizes.

2021 Slash geometry:

2021 Trek Slash, geo chart

While the carbon and aluminum models were slightly different before, the geometry is now the same between all the 2021 models. The new Slash comes in S/M/ML/L/XL frame sizes. Versus last year’s Slash, the 2021’s head tubes were slackened by one degree, now sitting at 64.1 degrees. The seat masts are also 1-2 degrees steeper, with a new effective seat angle of 75.6 degrees.

Reach was also increased quite a bit with M/L frames now up to 450/469mm. While the front ends got longer, they were stretched out with the Slash’s stubby 35mm stems in mind, so the bikes won’t feel drastically longer than the 2020 versions. Trek has also gone from 51mm offset forks down to a very short 42mm offset.

All frame sizes run 437mm chainstays, which are 2mm’s longer than before to increase the wheelbase and better balance the longer front ends. BB height is now slightly lower, but only by about 1mm.

2021 Trek Slash, Mino Link flip chip

The Slash employs Trek’s Mino Link flip chip, offering Hi and LO positions. All numbers listed above are for the Lo setting – Flipping into Hi position steepens the head tube and seat mast by 0.5 degrees, shortens the chainstays by 2mm, lengthens the reach by 5-6mm, and lifts the BB up 7mm.

2021 Slash model lineup:

2021 Trek Slash 7

Slash 7 (Aluminum) – $3499.99

2021 Trek Slash 8

Slash 8 (Aluminum) – $3999.99

2021 Trek Slash 9.7

Slash 9.7 – $ 4799.99

2021 Trek Slash 9.8 GX

Slash 9.8 GX – $5999.99

2021 Trek Slash 9.8 XT

Slash 9.8 XT – $5999.99

2021 Trek Slash 9.9 X01

Slash 9.9 X01 – $7999.99

2021 Trek Slash 9.9 XTR

Slash carbon frameset – $3999.99

2021 Trek Slash, Aluminum frameset

Slash AL frameset- $2199.99.

The carbon and aluminum framesets both come with a RockShox Super Deluxe Ultimate Thru-Shaft shock, the bottle cage/storage door, a headset with the Knock Block 2.0 headset cap, and a 35mm Bontrager Line Pro stem.

One final note: Trek’s Project One custom paint option is available for the 9.8 XT, 9.8 GX, 9.9 X01, and 9.9 XTR models. This upgrade will cost you an extra $500. The 2021 Slash is available now online and at Trek dealers (technically… like many bike brands right now, Trek says demand is greater than supply, so you may have to be patient!)

trekbikes.com

Steve Fisher

Steve Fisher is a staff contributor for Bikerumor. Steve has been writing about trail, enduro and downhill mountain biking (plus a few commuter bikes) for seven years. Prior to that, Steve wrote for Whistler Traveller Magazine and Mountain Life Magazine. Steve is based in Pemberton, British Columbia, an area that offers plenty of challenging world-class singletrack and makes for great photos!

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  • Best Mountain Bike Reviews

Best Trail Mountain Bikes

Trek remedy 8 review.

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  • Fun Factor - 25% 7.0
  • Downhill Performance - 35% 7.0
  • Climbing Performance - 35% 6.0
  • Ease of Maintenance - 5% 6.0

Our Verdict

Compare to similar products, our analysis and test results.

trek remedy 8 trail mountain bike review - if the 19.5-inch remedy looks small on our 6'1" tester, it is. this...

Should I Buy This Bike?

The Trek Remedy is a nice choice for a lot of riders. Those who want a versatile bike but don't demand cutting-edge geometry or the lightest and fastest bike will like this rig. The Trek gets it done on all areas of the trail and comes with some pretty impressive components. The Remedy charges hard enough and climbs well enough for the majority of riders. What this bike lacks in top-end performance, it makes up for with its easy-going attitude and a wide range of terrain on which it is comfortable. This agreeable and reliable bike comes with excellent components and should work splendidly for casual and intermediate riders.

trek remedy 8 trail mountain bike review - the active suspension is excellent through boney and technical...

Frame Design

The Remedy has been a popular bike in the Trek lineup for some time. This balanced bicycle was introduced in 2006 with 26-inch wheels and has also run 27.5 and 29-inch wheels. This bike runs 150mm of rear-wheel travel and uses the Active Braking Pivot (ABP) Suspension design. ABP uses a pivot above the bottom bracket and a rocker link approximately halfway up the seat tube. There is a pivot located at the rear axle that is designed to reduce the influence of braking forces. ABP provides a very plush downhill ride with excellent bump compliance and a cloud-like feel. The major downside is that this suspension design relies heavily on the shock's climb switch on the ascent.

trek remedy 8 trail mountain bike review - the 2019 remedy frame.

We rode a 19.5-inch (roughly a large) test bike. This bike has a 622mm top tube and a 457mm reach measurement. The chainstays are 433mm and the wheelbase is 1203mm. The head tube angle measures a moderate 66.1-degrees. Our test bike hit the scales at 33 lbs 4 ounces with tubes and without pedals.

It should be noted that while the 457mm reach measurement seems reasonable, this bike feels very short. Our 6'1" tester was extremely cramped. If you are in between sizes, we highly recommend sizing up on this bike.

Design Highlights

  • Runs 27.5-inch wheels with clearance for tires up to 2.8-inch wide
  • 150mm of rear-wheel travel
  • Designed around 160mm fork
  • Build kits starting at $3499.
  • Available in carbon fiber or aluminum (tested)
  • Available in 13.5", 15.5", 17.5", 19.5", 21.5", 23"
  • Press Fit bottom bracket
  • Uses Knock Block headset
  • Lifetime frame warranty

trek remedy 8 trail mountain bike review - the abp suspension delivers a plush and comfortable ride on small...

Downhill Performance

The Remedy is a solid and predictable descender. The ABP suspension provides a supremely comfortable and plush ride. The conservative geometry is a curse and a blessing. On one hand, it handles well at slower speeds with a less aggressive pilot. On the other hand, when you're pinned, a longer and slacker design would add stability and confidence. The component grouping worked well although the Knock Block stem/headset proved to be problematic.

The long and low trend is in full swing in 2018. 65-degree head tube angles and 1230+mm wheelbases are commonplace on 150mm travel bikes. In addition, bottom bracket heights are creeping lower and lower. Many of these bikes are tremendously stable at high speeds and feel planted and grounded. The problem with these long and low bikes is that they often require aggressive riders and high speeds to come alive. Long wheelbases and slack angles can feel clunky in tight spaces or at slower speeds.

trek remedy 8 trail mountain bike review - the 160mm lyrik creates a stout and confident front end.

The Remedy doesn't buy into the long and low trend. This bike is designed with conservative geometry including a reasonable 1203mm wheelbase and 66.1-degree head tube angle. The result is a relatively nimble and easy-riding bicycle. The Remedy rides well at slow speeds. This bicycle works through tight spaces effectively and works through tight corners well (aside from Knock Block quirk outlined below). A lot of people can have fun riding this bicycle and that is a high compliment in our books. On the downside, the Trek can feel a little squirrely at very high speeds or charging through serious chunder. This is the scenario where slacker geometry and a slightly lower bottom bracket might enhance performance. Still, the middle-of-the-road geometry works well for the overwhelming majority of trails.

The ABP suspension delivers a plush and comfortable ride. The Remedy has a more linear feel compared to what we are used to. Progressive suspension is the opposite of linear and it tends to ramp up deeper in the stroke. Progressive designs provide more deep stroke support as they are harder to push deep into their travel. Linear designs are more plush with a smoother feel throughout the stroke. The Remedy has a supple and comfortable feel. The rather linear nature of this bike makes it possible to blow through the travel on occasion, but it does take a pretty substantial impact.

trek remedy 8 trail mountain bike review - the shorter wheelbase allows this bike to easily bend through corners.

The Remedy steers well and responds well to rider input. The short wheelbase and upright geometry negotiate corners effectively and the 2.6-inch Bontrager XR4 tires are solid and can back up aggressive maneuvers. Make no mistake, at nearly 33.5-pounds, it does take the effort to lift this bicycle off the ground to pop over roots or rocks.

The Knock Block is a system in the headset and stem on some Trek mountain bike frames. Knock Block is a feature that prevents the handlebars from spinning around too far and damaging the frame in the event of a crash. With the use of Knock Block, Trek can design the downtube of their frames differently since they don't need to worry about the fork crown clearing the frame. The result, Trek claims, is a stiffer frame. The Knock Block can be problematic on tight and old school trails. If you are turning hard on legitimately tight corners, you may max out the steering and the Knock Block will not allow you to steer aggressively enough to make the corner. It should be made very clear that it takes a very sharp corner to experience this problem. If you ride purpose-built mountain bike trails or normal trails, this will be a non-issue.

The 160mm RockShox Lyrik RC is a stellar specification at the $3999 price tag. The Lyrik is stout, reliable, and smooth and worked flawlessly. The SRAM Guide R brakes are decisively fine and the Bontrager Line Comp 30 wheels were excellent. The 54-tooth hub engagement is quick and very beneficial for slipping in pedal strokes out of a corner. The Bontrager XR4 tires were surprisingly effective. They lack the aggressive shoulder knobs found on some of our favorite tires. That said, the XR4s hook up well and they have a smooth transition from the center knobs to the shoulder knobs.

trek remedy 8 trail mountain bike review - thanks to the active suspension, rear wheel traction is stellar on...

Climbing Performance

The Remedy is a predictable climber that shines on technical climbs. This bike is definitely heavy and it is certainly noticeable on sustained climbs. The climbing position is comfortable but the tight top tube can be awkward. The component grouping worked well-enough on the ascent.

The Remedy sets you up in a nice climbing position. You are more or less on top of the bottom bracket. This helps transmit power efficiently and directly to the cranks. It is important to note that this bike benefits heavily from the use of the shock's climb switch, especially on smooth or semi-smooth trails. If you leave the RockShox Deluxe in the open position, there is substantial amounts of pedal bob. The middle shock position delivers the best balance of efficiency and traction.

If you encounter substantial amounts of root-laced or ultra rocky climbs, the Remedy is a great choice. With the shock in the open position, this bike delivers exceptional traction. Yes, the suspension is very active and bobs a bit, but the traction is stellar. Your rear wheel feels glued to the ground and it allows you to scoot right up a problematic section of trail.

The relatively short wheelbase on the Trek is beneficial in most situations. This bike bends through corners effectively. In addition, the more compact axle to axle measurement makes it easier to pull this bike up and over obstacles. Where longer bikes can get hung up more easily on a ledgy climb, the shorter Remedy scoots right up and over.

trek remedy 8 trail mountain bike review - given its heft, the remedy takes some effort on steep climbs.

There is no way around the heft of this bicycle. It takes a lot of energy to take this bike on 3+ hour trail rides. This bike is especially exhausting if you're trying to climb with any sense of urgency. Here at OutdoorGearLab, we are far from weight-weenies, but once you break 32-pounds, it's a different story. We would be very interested to try the carbon fiber version. The Remedy 9.7 has a carbon frame with a relatively close build kit and sells for $4199. The 9.7 set up tubeless would weigh under 30-pounds. That is intriguing.

The build kit works well on the ascent. The SRAM GX Eagle works fine and it is nice to have that 50-tooth climbing gear. The Bontrager XR4 2.6-inch tires are solid on the climb. The wide footprint delivers a nice contact patch and the tread pattern rolls reasonably quick. There were tubes installed in our test bike. Setting this bike up tubeless would allow riders to run a lower tire pressure and would only add to the excellent climbing traction while also saving weight.

The 160mm RockShox Lyrik fork is excellent.

Our Remedy 8 sells for $3999. This model features a killer build kit including a RockShox Lyrik fork, SRAM GX Eagle drivetrain, a Bontrager dropper post, and SRAM Guide R brakes. Pair these stellar components with reliable on-trail performance and you have a strong value. This bike would be a particularly nice value for newer or less aggressive riders who don't need the latest and greatest. Advanced riders and hard chargers might find the somewhat outdated geometry to detract from top-end performance.

trek remedy 8 trail mountain bike review - the remedy is a well-rounded all mountain bike.

How to Select the Right Mountain Bike

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  • Manufacturer Specific

Oneup carbon bars, Knock block lockring adaptor & Non Trek stems

  • Thread starter Doug Stampfer
  • Start date Aug 5, 2020

Doug Stampfer

Well-known member.

  • Aug 5, 2020

I'd heard about the Oneup carbon bars being good for trail chatter & fatigue so bought a set. Then found out they only come in 35mm so bought a new stem. Then tried to put them on in the carpark by the trail & found out they don't fit because a special lockring spacer adaptor thing is needed to hold all the spacers together for the stupid knock block to work. Good grief. Ok now but they're out of stock on this side of the world, not in till next month & the shop wants $85.00 just for the bloody ring! Any of you Trek experienced guys have any suggestions?  

Tony.OK

Active member

Doug Stampfer said: I'd heard about the Oneup carbon bars being good for trail chatter & fatigue so bought a set. Then found out they only come in 35mm so bought a new stem. Then tried to put them on in the carpark by the trail & found out they don't fit because a special lockring spacer adaptor thing is needed to hold all the spacers together for the stupid knock block to work. Good grief. Ok now but they're out of stock on this side of the world, not in till next month & the shop wants $85.00 just for the bloody ring! Any of you Trek experienced guys have any suggestions? Click to expand...

plu29um

Bontrager Line Pro 35 0-Degree Stem - Trek Bikes (GB)

www.trekbikes.com

Bontrager Line Pro 35 0-Degree Blendr Stem - Trek Bikes (GB)

www.trekbikes.com

Bontrager Line 35 0 Degree Stem - Trek Bikes (GB)

Bontrager stem is the only option. Or just run it without. I had another Trek with a KB, a half decent crash means you will break it anyway & the fork still hits the rubber DT protector. As long as that's there, don't sweat it. I never replaced the broken bit on mine, crashed a bunch more times & never had a problem.  

Paolobernie

Paolobernie

Hob Nob said: Bontrager stem is the only option. Click to expand...

Trek Knock Block Lockring Spacer 1 1/8"

www.hibike.com

I have renthal carbon with a renthal stem but using the adapter with hope spacers. This was fitted at trek to be fair whilst in fir a service it works perfect  

  • Thread starter

Thanks for the replies. I think I'll look at machining the stem I got as it will probably be the cheapest option.  

Philly G

Doug Stampfer said: Thanks for the replies. I think I'll look at machining the stem I got as it will probably be the cheapest option. Click to expand...
  • Aug 7, 2020
Philly G said: Excellent idea. The cost of that ring is ridiculous! Click to expand...

what is trek knock block

🛠️Wrecker🛠️

Doug Stampfer said: the shop wants $85.00 just for the bloody ring! Click to expand...
Doomanic said: WTAF? I paid £15 for mine! Click to expand...
Doug Stampfer said: I have really gone off Trek as a brand for the propriety price gouging. Click to expand...

I'm sure if you asked nicely, a UK resident would post one out to you when there's stock... Looks like it would cost about £10 to post one tracked and signed for worldwide.  

Doomanic said: I'm sure if you asked nicely, a UK resident would post one out to you when there's stock... Looks like it would cost about £10 to post one tracked and signed for worldwide. Click to expand...

Even less if you don't have it tracked and signed for.  

Flatslide

E*POWAH Master

  • Aug 8, 2020
Philly G said: Yeah I really can't blame you there, I felt the same way with getting bits for my Remedy, swore I'd never buy another Trek. And here I am with another one It's very annoying, but Treks represent such good bang for buck (at least here in NZ), you think you're getting good value for money until you try to buy proprietary bits like the lock ring spacer To be fair though, they're still great bikes, which is why I put up with it. You can get some parts cheaper from the UK, some places charge heaps for shipping but you can get around that with YouShop Click to expand...

Well problem solved. After realising I was totally overthinking it I got out the dremel & made a couple of grooves in the stem & sat it on the Trek spacers. My Funn stem is a bit narrower than the original so I put a couple of normal spacers on top & tightened it up. A bit time consuming but felt pretty satisfied that it all came together. So was it worth it you may ask... I was pretty sceptical before I rode them but yes I have to say the Oneup bars are probably the best thing I've done on the bike so far. It's hard to describe but the feel of them is so comfortable & forgiving just sitting on the bike holding them. When I held the original (heavy!) bars they felt like a piece of metal tube. When I held the carbon bars they felt like they were almost a living thing - weird I know. I took the bike for a thrash around the tracks this avo & didn't get any of the usual jarring or arm pump so really really pleased with them.  

Doug Stampfer said: Well problem solved. After realising I was totally overthinking it I got out the dremel & made a couple of grooves in the stem & sat it on the Trek spacers. My Funn stem is a bit narrower than the original so I put a couple of normal spacers on top & tightened it up. A bit time consuming but felt pretty satisfied that it all came together. So was it worth it you may ask... I was pretty sceptical before I rode them but yes I have to say the Oneup bars are probably the best thing I've done on the bike so far. It's hard to describe but the feel of them is so comfortable & forgiving just sitting on the bike holding them. When I held the original (heavy!) bars they felt like a piece of metal tube. When I held the carbon bars they felt like they were almost a living thing - weird I know. I took the bike for a thrash around the tracks this avo & didn't get any of the usual jarring or arm pump so really really pleased with them. Click to expand...
Philly G said: It does sound very satisfying, I love the DIY tinkering side of MTB Good to know how you got on with the OneUp bar, I've nearly convinced myself I should have one too Did you get the 20mm or 35mm rise? Click to expand...
Doug Stampfer said: Hmmm could I use that as justification to get the DVO coil...... Click to expand...
  • Aug 18, 2020

I did the same mistake. I took my Dremel and 15 minutes I had two spaces to fit the lock thingy. Worked liked a charme  

GrandesRoues

  • Aug 25, 2020

I checked pn the xl rail i rented, and knock block was not needed.  

  • Aug 29, 2020

You also don’t need it on the L as well. I have over 1cm of clearance with an Ohlins fork. Ive removed it, as it’s pointless, rather than just running a normal stem as I was. Hope top cap, normal spacers & OneUp stem so I can run the tool in it.  

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Welcome to the Wolf Tooth Color Shop, where you’ll find anodized components, multi-tools, and accessories categorized by color. Select your headset, ReMote, chainring bolts, seatpost clamp, grips, multi-tools, and more from several colors that match the style of your bike.

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Wolf Tooth Premium Headset for Trek Knockblock mountain bikes, shown in blue.

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Wolf Tooth Premium Headsets for Trek Knock Block are machined in the USA out of aircraft-grade 6061 aluminum with superior sealing for protection against the elements. Available in a variety of colors to match the style of your bike. These upper headsets are for Trek frames with molded-in internal bearing cups. 

NOTE: These headsets are to be used only with Trek Knock Block system 

Trek developed Knock Block as an integrated frame protection system to prevent self-inflicted scuffs, dents, or cracks from spinning handlebars. Knock Block consists of a special stem and stop chip on the frame. The stop chip limits the turning range of the custom keyed headset cover. The top of the headset cover has notches that lock into corresponding notches on the headset spacers which also correspond with notches in the stem for the strongest connection to the steer tube. These parts work together to prevent the crown of the fork and the handlebar controls from hitting the frame. 

Compatibility.

  • Designed to work only with Trek Knock Block system
  • The top cap on these headsets have unique raised features that key to Knock Block-compatible stems (made by Bontrager)
  • If spacers are needed, you will need to use special Knock Block-compatible spacers with notch features

what is trek knock block

Recommendations

  • Lower headsets on bikes with Knock Block do not have any unique features, as they are usually IS headsets that are available separately.
  • Special Knock Block-compatible headset spacers with notch features are required if you plan to use spacers.
  • Upper headsets ship with a star nut which can only be used on forks with steel or aluminum steerer tubes. For forks with carbon steerer tubes, you will need a   compression plug  (sold separately). (Never use a star nut on a carbon steerer tube).

Related Products

  • Precision Headset Knock Block Spacers

Weight: 52g Stack Height: 7mm Material:  6061 aluminum Stem Cap Bolt Torque Spec:  2-3 Nm with light grease on threads only Made in the   USA

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Knock Block Delete (COC Block)

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Hello Everyone, I just wanted to share a product I designed to displace the stem for the Trek Knock Block. This 2 bolt system gives you excellent strength and holding power to utilize the Trek knock block bearing cap AND allow you to use any stem that fits your steerer tube. Hit me up if you have any questions. Thanks for the interest! Huckleberry's COC Block: Huckleberry's COC Block Locking Collar for Trek Knock Block (Knock Block Delete) | eBay Install Instructions:  

NeedleBanger

Low and behold I've been a passionate advocate for Knock Block hatred, but i swear to god it just saved my frame on a massive wreck earlier today!!! Who knew that stupid piece of proprietary engineering would actually save my frame one day 🤷‍♂️ Honestly an extra centimetre of back spacing on my frame's downtube would eliminate the need for it entirely, but hey it actually did what it was designed to do today. My body on the other hand got totally trashed, I might be down for a week or two after that one.  

weeksy950

That's the rub... the knockblock may have saved the frame, but if they're designed it differently it wouldn't have had to save it anyway.  

Glad to hear your frame was ok. Hope you recover quick and get back on the trails soon! I think the knock block works for what it was designed for, but Trek didn't leave any room to change the stem out to anything else. That's where the COC block comes to eliminate the need for the Trek stems.  

HUKIT

Trek Knock Block Headset Lockring Spacer - Trek Bikes

www.trekbikes.com

Hello Hukit, Thanks for the question. The short answer is the Trek locking ring is a total POS. It's a feel good part and only takes about 2 fingers to overcome it. I wish that Trek did a better job with it honestly. Long answer: This design creates alot more holding strength than the Trek unit by using more surface area, a larger bolt (or a double bolt option I recommend), and a floating nut. Trek uses a very small bolt on theirs and don't offer a 2 bolt system. I have personally tried the trek lock ring on 2 different bikes and since I was deleting the neck part of the knock block system, the lock ring is the last line of defense to prevent the fork from hitting the frame. With so little holding strength on their unit, it doesn't cut it. Besides that a Made in America part is always worth something IMO. Thanks for the question!  

Fastkitty

How is the product you designed different from the Trek available knock block ring with 10 m spacer ? Trek Knock Block Headset Lockring Spacer - Trek Bikes Thanks, FK  

Fastkitty said: How is the product you designed different from the Trek available knock block ring with 10 m spacer ? Trek Knock Block Headset Lockring Spacer - Trek Bikes Thanks, FK Click to expand...

Thanks its for my wife's bike (she is vertically challenged) and as we are already using a flat bar and trying to get the bar height down the 25 mm size spacer does not work for our application. FK  

Fastkitty said: Thanks its for my wife's bike (she is vertically challenged) and as we are already using a flat bar and trying to get the bar height down the 25 mm size spacer does not work for our application. FK Click to expand...

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Huckleberry's COC Block Locking Collar for Trek Knock Block (Knock Block Delete) | eBay

Harold

I don't own a Trek mtb, but I'd buy this product because of the name alone.  

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Meta blocked news from Facebook and Instagram in Canada — could they do the same in Australia?

A phone displaying the meta logo sits on a computer keyboard

Meta's last attempt to outlaw news on Australian platforms saw users lose access to domestic violence charities, government departments and the Bureau of Meteorology. 

Experts say it would be "more refined" if it went on to repeat that move, but remain divided on just how likely that is.

The social media giant, which owns both Facebook and Instagram, earlier this month  announced it would no longer pay Australian news media organisations for their content on its platforms. 

It had been paying outlets $70 million a year, under deals made when the government introduced the controversial News Media Bargaining Code . 

Along with not renewing those deals, it will also shut down Facebook's news tab features in Australia and the United States. 

Meta has already barred news access on Facebook and Instagram for Canadians — here's what the experts say is likely to happen closer to home. 

A 'last resort' or an easy fix for Meta? 

The ban in Canada came after the country passed its Online News Act, which Meta labelled "fundamentally flawed" — the law requires platforms to pay local publishers for their content.

Officially called Bill C-18, the law applies to companies operating search engines and social media sites that have a total global revenue of more than $CA1 billion ($1.12 billion) a year. 

They also need to have an average of 20 million Canadian users every month. 

Google reached a deal with the Canadian government. But Meta chose to block news, a decision which has so far lasted six months.

Canada's law is based on the legislation in Australia — the News Media Bargaining Code — which saw Meta temporarily restrict news content in 2021. 

It ultimately led to the deals Meta now says it won't renew. 

However, Curtin University's professor of internet studies Tama Leaver says a repeat of the ban for Australian users would be a "last resort". 

"Facebook can do it anywhere, it's done it before and it can do it again," he says. 

"[With the first ban] Facebook took an incredibly broad sense of what news was, it wiped out a bunch of things it shouldn't have, including emergency services. 

"They are more refined in knowing what they would ban if they were to ban news, just in terms of technical capabilities. 

"That said ... they got pretty poor PR out of the news ban. I don't think it was as successful a bargaining chip as they imagined it would be."

However, Axel Bruns, from Queensland University of Technology's Digital Media Research Centre, says there is a strong likelihood Meta may look to repeat its initial ban. 

"Clearly they have no reluctance to remove news from their platforms if they feel that it's warranted," he says. 

"Particularly if they were to be designated under the News Media Bargaining Code here; that could be the trigger that puts them over the line and makes them remove news again. 

"I think they're quite reluctant to repeat the payments that they've made to Australian news publishers last time around." 

While the 2021 ban did force changes to the law, Professor Axel Bruns, from Queensland University of Technology's Digital Media Research Centresays it didn't "win fans with users". 

"And it forced news organisations to start looking elsewhere in terms of engaging with their audiences," he says.

"I think banning news in Australia would be a last resort for Meta this time around, instead of a bargaining tactic. And they've been quite clear they have no intention of blocking news unless their hand is forced in a different way." 

'People don't come to Facebook for news' 

Meta says it's not renewing the current agreements because Facebook users were not interested. 

"The number of people using Facebook News in Australia and the US has dropped by over 80 per cent last year," it said in a statement.

"We know that people don't come to Facebook for news and political content — they come to connect with people." 

Facebook remains the most popular social media platform for general news, according to the University of Canberra's 2023 Digital News Report Australia. 

"Half of Facebook users (50 per cent) say they use the social media platform for news," the report says, noting this was a 3 per cent increase from 2022. 

"Facebook and YouTube remain the most popular social media platforms for news across all generations." 

Overall, 14 per cent of the more than 2,000 Australians sampled in the report say they use Instagram for news — also a 3 per cent jump from the previous year.

Deakin University's associate professor of communication Kristy Hess says her biggest concern is even if Meta "doesn't need news, society needs news". 

"We are at a very difficult point in society [when it comes to] what we're going to do, how we're going to fund journalism and how we're going to ensure people engage with journalism," she says. 

"Those are two very difficult questions for us." 

Under the News Media Bargaining Code, the federal government can "designate" digital platforms such as Meta's, forcing them into mediation to share revenue or face fines. 

The government has yet to designate any company. 

"In some ways, there is a bit of gamesmanship, and there was [in] 2021 as well," Professor Bruns says. 

"The government and Meta are trying to call each other's bluffs, basically. They're probably making these statements about letting the current agreements run out just to put the writing on the wall.

"They might then hope the government takes the lesser of two evils and says, 'OK, we won't designate you'." 

In other countries, governments have instead started looking into innovating their own alternative platforms or "public spaces", says Dr Hess. 

The Public Spaces Incubator is one project partnering with media organisations in Canada, Belgium, Switzerland and Germany to create "digital conversational spaces". 

"Do we really need Facebook to disseminate the news and information?" Dr Hess says. 

"That's the question we all need to ask ourselves now.

"What's happened is Facebook [has said], 'We're not news providers, we're going to step out of that space' ... what then is the role of government and news organisations at this point in saying, 'What does that mean?'

"Do we force them to be news providers ... or do we say Facebook is not the place for news?" 

Potential 'knock-on effect' for democracy 

If Facebook does follow through with its "last resort" and ban news from its platforms, Professor Leaver says the impact could be far-reaching, particularly for "passive" news consumers. 

"It's difficult because most Australians don't actively look for news via social media," he says. 

"That said, it's incredibly healthy for a democracy for there to be lots of bits and pieces of news [coming] across people's attention that they're not actively looking for. 

"When you've got the vast information landscape we've got, people don't necessarily know what they're looking for, but having bits of news floating up ... is actually a really good thing. 

"I do think news going away from big social media platforms would have a big impact on the visibility of news to everyday citizens. 

"That has a knock-on effect of being, essentially, bad for democracy in broad terms." 

The other risk is a potential surge in misinformation and "fake news" in the absence of official news channels on the platforms, according to Professor Bruns. 

"People who are mainly active on Facebook and who rely on others to share news with them via Facebook, they're the ones that are going to miss out if news disappears again," he says. 

"In some ways, those are the most vulnerable news consumers ... to the kind of information that will continue to circulate because it's not news and it's not banned by Facebook. 

"What will continue to circulate is unsubstantiated rumour, information from disreputable sources, from untrustworthy sources."

Last year marked the first time concern about misinformation rose among Australians in three years, according to the University of Canberra's report. 

For Meta, says Professor Bruns, there is an "incentive not to police" misinformation on its platforms. 

"It's often these sorts of hotly debated topics that are very sticky, that really keep people on the platform," he says. 

"To some extent, for Meta there is an incentive to keep that kind of debate on the platform, even if it is ill-informed, even if it is mis- and dis-information, because it generates engagement. 

"The only caveat to that is really ... when that turns so toxic and so hateful that it actively drives users away." 

And for social media users, Dr Hess says it may be time to draw a "line in the sand". 

"If this is what's coming down the line, if you are a consumer of news in this country you need to think very carefully about where you should be going for legitimate sources of news," she says. 

"Start going there now. It's not rocket science." 

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  • Trek Knock Block 72-Degree Headset Non-Block Frame Chip

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  2. Retain Trek Knock Block Features with an Aftermarket Stem! Simple Fix

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COMMENTS

  1. Trek Knock Block (with Cam McCaul!)

    Shop Trek Mountain Bikes: http://bit.ly/2R4wRnJKnock Block's headset-integrated frame defense solution stops spinning fork crowns and handlebars from damagin...

  2. Trek Knock Block Headset Upper Assembly

    Trek Knock Block Headset Upper Assembly. Be the first to write a review! $31.99. Model 536723. Retailer prices may vary. Service and replacement parts specifically for Trek Knock Block technology. Compare. Color / Black. Select a color.

  3. Trek Knock Block Removal: A How To Video.

    Good day everyone. In today's "Toolbox Topic" episode, Brandon and I will show you how to remove your knock block properly. To properly remove your knock blo...

  4. Knock Block Headset Alternative (Easy & Simple)

    The knock block alternative dust cover differs from standard integrated headsets in two ways. Firstly the rear bolt. This functions to hold the dust cover firmly over the parts installed underneath (bearing cup and bearing … more on that in sec …). A top cap is installed just as with any similar headset.

  5. Trek Rail 2020

    751. NZ. Jun 23, 2021. #16. To make it clear to those contemplating getting rid of the knock block - it is there to stop your forks hitting the downtube- your forks may hit the frame without it. If your forks move easily under the frame without hitting it, then the option is there for removing/ modifying it.

  6. Knock Block: Frame Defense

    Trek's all-new Straight Shot frame design features Knock Block frame defense to optimize stiffness-to-weight ratio for a more responsive ride. Knock Block's...

  7. 2021 Trek Slash gets more travel, custom thru-shaft shock, Knock Block

    Trek has also updated their Knock Block system, and the Slash comes with the Knock Block 2.0. The significant thing to note is that the new Slash frame will not come into contact with your fork crown, so you can remove the Knock Block 2.0 if desired. Trek kept it there because it can save you from ripping out cables/hoses in a crash, something ...

  8. Trek Knock Block 72-Degree Headset Assembly with Display Chip

    Trek proprietary headset components compatible with Trek Knock Block models. 72-degree headset fits 2021 Slash 29. Includes crown race, bearings, top cover, frame chip & fastener. Frame chip has display tabs to connect Bosch Kiox Mount sold separately. Must be paired with Knock Block stem and Knock Block spacers.

  9. Trek Remedy 8 Review

    The Knock Block is a system in the headset and stem on some Trek mountain bike frames. Knock Block is a feature that prevents the handlebars from spinning around too far and damaging the frame in the event of a crash. With the use of Knock Block, Trek can design the downtube of their frames differently since they don't need to worry about the ...

  10. Trek Knock-Block Capabilites? : r/MTB

    The Trek Remedy has knock-block to stop the fork crown from smashing into the downtube. However! All is not lost. With a 5mm crown race spacer, you can raise the head tube enough to allow the bars to completely spin around. It's easy enough to get one from Reverse Components, and install it in minutes.

  11. Trek Knock Block Headset Lockring Spacer

    Trek Madone SL Painted Headset Covers. $49.99. Model. Trek Knock Block Lockring Spacer. Steerer outer diameter. 28.6mm (1-1/8") Thickness. 10mm. Enhance your cycling experience with Trek Knock Block Headset Lockring Spacer.

  12. Oneup carbon bars, Knock block lockring adaptor & Non Trek stems

    The Knock Block Lockring Spacer for 1 1/8 " Knock Block - the special Trek-developed… online shop. www.hibike.com Reactions: Doug Stampfer. R. Rail5 Member. Dec 12, 2019 46 14 Yorkshire. Aug 5, 2020 #6 I have renthal carbon with a renthal stem but using the adapter with hope spacers. This was fitted at trek to be fair whilst in fir a service ...

  13. Wolf Tooth Premium Headset for Trek Knock Block

    Wolf Tooth Premium Headsets for Trek Knock Block are machined in the USA out of aircraft-grade 6061 aluminum with superior sealing for protection against the elements. Available in a variety of colors to match the style of your bike. These upper headsets are for Trek frames with molded-in internal bearing cups. Trek developed Knock Block as an ...

  14. What is the Deal with Treks Knock Block

    Treks Knock Block is a very controversial item. Many people like it, and just as many hate it. Today we are going over the argument. 0:00 Good reviews & Trek...

  15. Knock Block Delete (COC Block)

    Knock Block Delete (COC Block) I just wanted to share a product I designed to displace the stem for the Trek Knock Block. This 2 bolt system gives you excellent strength and holding power to utilize the Trek knock block bearing cap AND allow you to use any stem that fits your steerer tube.

  16. Trek 2017 Knock Block Headtube Armor

    Trek 2017 Knock Block Headtube Armor. Be the first to write a review! $12.99. Model W529228. Retailer prices may vary. Keep your investment protected with durable armor designed specifically for your ride. Compare. Color / Black. Select a color.

  17. Trek Knock Block doesn't work

    maciej177 wrote: trek wrote: These parts did not move to the upward, Hey there, sorry to hear about your accident! The Knock Block system aids in preventing the fork and handlebars from ...

  18. Retain Trek Knock Block Features with an Aftermarket Stem ...

    I'm sure a lot of you out there know about this lock ring spacer for your Trek Mountain Bike with the straight shot downtube and Knock Block headset, but may...

  19. Meta blocked news from Facebook and Instagram in Canada

    Meta's move has sparked concerns Australians could see a repeat of previous news bans — here's what the experts say is likely to happen next.

  20. Trek Knock Block Headset Spacers

    Trek Knock Block Headset Spacers. Be the first to write a review! $41.99. Model W518016. Retailer prices may vary. Trek proprietary headset spacers compatible with Trek Knock Block model bikes. Compare. Color / Black. Select a color.

  21. Trek Knock Block Headset Upper Assembly

    Trek Knock Block Headset Upper Assembly. Be the first to write a review! $51.99. Model 536723. Retailer prices may vary. Service and replacement parts specifically for Trek Knock Block technology. Compare. Colour / Black. Select a color.

  22. Trek Knock Block 72-Degree Headset Non-Block Frame Chip

    Trek proprietary headset components compatible with Trek Knock Block 72-degree models. Designed for Slash 29 2021. Compatible with Top Fuel 29 2022. Compatible with Rail 9.8 & 9.9 2022. Frame chip has display tabs to connect Bosch Kiox Mount sold separately. Not compatible with Rock Shox Flight Attendant front forks due to interference.