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trek procaliber 6

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Trek Procaliber 6 Review

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Trek Procaliber 6 Review

  • High-end aluminum frame
  • benchmark bike in this price range
  • strong in the uphills
  • very good wheels
  • 25 years warranty

Overall Bike Check

The most importanten ratings of the [bike_model] ⬤ in comparison to the competitor bikes of following categorie: (Allround-Hardtail up to 1500 €) ⬤ .

Value for Money Check

If you are keen on value for money, this is your chart. It shows you at a glance how many bike you get for 1299 €.

Je steiler der Winkel des Sitzrohrs ist, desto effizienter können Sie in die Pedale treten.

  • Frame Procaliber alu Alpha Platinum Aluminium, konisches Steuerrohr, interne Zugführung, BSA 73, versteckte Gepäckträger- und Seitenständeraufnahmen, UDH, Boost148, 12 mm Steckachse
  • Frame Material Aluminium
  • Fork RockShox Judy Silver, Solo Air-Luftfeder, TurnKey-Lockout, konischer Gabelschaft, 42 mm Versatz, Boost110, 15 mm Maxle Stealth-Achse, 120 mm Federweg
  • Spring Unit air
  • Remote-Lockout yes
  • Gearrange 510%
  • Drivetrain 1x12
  • Gear Lever Shimano Deore M6100, 12fach
  • Rear Derailleur Shimano XT M8100, langer Käfig
  • Crank Shimano MT512, 30 Z, 55 mm Kettenlinie, 175 mm Kurbelarmlänge
  • Cassette Shimano Deore M6100, 10-51 Z., 12fach
  • Chain Shimano Deore M6100, 12fach
  • Brake Set Hydraulische Scheibenbremse Shimano MT200
  • Brake Rotors 180/160
  • Rims Bontrager Kovee, Hohlkammerfelge, Tubeless Ready, 28-Loch, 23 mm Innenweite, Presta-Ventil
  • Front Hub Shimano TC500, Aluminium, Center Lock-Scheibenaufnahme, 110 x 15 mm Steckachse
  • Rear Hub Shimano TC500, Aluminium, Center Lock-Scheibenaufnahme, 148 x 12 mm Steckachse
  • Tires Front Bontrager Sainte-Anne Pro XR, Tubeless-Ready, Zweikomponenten-Mischung, Aramidwulstkern, 60 TPI, 29 x 2.20
  • Tires Rear Bontrager Sainte-Anne Pro XR, Tubeless-Ready, Zweikomponenten-Mischung, Aramidwulstkern, 60 TPI, 29 x 2.20
  • Saddle Verse Short, Stahlstreben, 145 mm Breite
  • Seat Post Bontrager Line Dropper
  • Stem Bontrager Elite, 31,8 mm Klemmdurchmesser, Blendr-kompatibel, 7 Grad, 70 mm Länge
  • Handle Bar Bontrager, Aluminium, 31,8 mm, 15 mm Rise, 750 mm Breite
  • Handle Bar Width 750
  • Head Set Semi-integriertes, offenes Kugellager, 1 1/8" oben, 1,5" unten

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Trek Procaliber 6 review

Can this ‘scissor’ frame cut fatigue and add speed?

Mick Kirkman

Guy Kesteven

Stiff, accurate frame; dropper and bigger-tyre friendly; Judy fork and Eagle gears; shock-shrugging IsoSpeed

IsoSpeed takes a wallop to start moving and then a while to stop; backswept bar and seat tube won’t suit all; surprisingly slow tyres

trek procaliber 6

Trek introduced its unique ‘IsoSpeed’ frame technology to its alloy MTBs last year, and the Procal 6 adds 12-speed SRAM Eagle shifting and RockShox’s impressive new Judy fork to the mix.

  • The Specialized Stumpjumper Evo Pro Carbon has landed
  • Cube Reaction C:62 review

Trek Procaliber 6 frame

The IsoSpeed system uses a small pivot to ‘decouple’ the seat tube and top tube, allowing them to articulate back and forwards independently. The bottom of the dramatically offset asymmetric seat tube is also almost completely flattened to form a leaf spring segment, to help soften blows from the trail.

Other distinctive frame details include the ‘waist’ on the head tube and the extensively shaped and tapered top tube.

There’s a cable port for a Shimano side-swing front mech in case you want to swap the single chainring for a double, plus two mounting stubs that’ll also work for a chain guide.

A seat-tube exit hole and ‘spare’ internal down-tube routing allow you to upgrade to a stealth dropper, and the 31.6mm seat tube diameter gives you a full choice of posts, compared to the limited options available in 27.2mm.

You get mounts for two bottle-cages too. The rear stays have no braces, to give max mud clearance. They end at neat Boost-width dropouts for a through-axle (with a QR lever on the end, for tool-free wheel removal/insertion), with a brake mount that bridges between the stays.

Trek Procaliber 6 kit

Despite its complex frame and low price, the Procal 6 has a good spec. The Judy Gold is smooth, well-controlled and relatively light, thanks to its full-alloy construction.

It has a through-axle for accurate tracking and a shifter-style ‘OneLoc’ remote lockout. The only downside is the plastic ‘flag’ adjuster that makes rebound adjustment crude.

Drive is provided by a full SRAM NX Eagle set-up, with an oversized DUB axle rotating in broad-spaced press-fit bearings, which maximise stiffness but can be a pain to service.

The XG-1230 cassette is heavy in weight and feel compared to Shimano, but the shifting through the 11-50t gear range is simplicity itself and gives great drive efficiency.

Brakes are the basic but utterly dependable Shimano MT400s. The rest of the kit is Bontrager, including the distinctively backswept bar.

Trek Procaliber 6 ride

The accurate-tracking frame and quality fork mean you can drive the front end hard, once you’re used to the bar

That bar makes a huge difference. By sweeping your hands further back, it mimics the effect of a shorter stem, so the 90mm unit feels more like 60-70mm.

As a result, the Trek feels twitchier and lighter, and there’s less weight on the front tyre. That’s compounded by an unusually slack seat tube, which also shifts your weight backward. This is handy for popping the wheel up over obstacles or off drops, but makes the front end more ‘fussy’ in terms of wandering about and losing the line, particularly on climbs.

As for the IsoSpeed system, it definitely, visibly works. If you hit a big lump, the seat tube bulges forward and the post sways back to help you ride out the blow. That’s useful if you get caught in the saddle by a big wallop, but most of the time you’ll be up and on the pedals anyway.

The shock-absorbing advantage while you’re powering a seated gear is also tempered by obvious rebound bounce, which can continue distractingly long after the initial impact. It takes a lot to get it moving too.

Bontrager’s X2 tyres are slower and less forgiving than their looks suggest — the ride was noticeably quicker and smoother when I swapped in the Chisel’s wheels.

The Trek still gets power down firmly though, without being as bruising as the Cube, and the accurate-tracking frame and quality fork mean you can drive the front end hard, once you’re used to the bar. Dropper compatibility and the ability to fit fatter tyres give the Procal 6 more aggressive-terrain potential too.

Brakes are the basic but utterly dependable Shimano MT400s

Trek Procaliber 6 specifications and geometry

  • Sizes (*tested): 13.5, 15.5, 17.5, 18.5, 19.5*, 21.5, 23in
  • Weight: 12.42kg
  • Frame: ‘Alpha Platinum’ aluminium alloy
  • Fork: RockShox Judy Gold RL Solo Air w/ OneLoc remote, 100mm (3.9in) travel
  • Chainset: SRAM NX Eagle DUB, 30t
  • Bottom bracket: SRAM DUB PF92
  • Cassette: SRAM XG-1230, 11-50t
  • Chain: SRAM NX Eagle
  • Mech: SRAM NX Eagle
  • Shifters: SRAM NX Eagle (1x12)
  • Hubs: Bontrager
  • Axles: 15x110 Boost (f), 12x148mm Boost (r)
  • Rims: Bontrager Kovee
  • Spokes: 28 stainless
  • Tyres: Bontrager XR2 Team Issue 29x2.2in (54mm measured)
  • Wheel weight: 1.97kg (f), 2.83kg (r), inc tyres
  • Stem: Bontrager Elite, 90mm
  • Bar: Bontrager Comp, 720mm
  • Grips: Bontrager XR Trail Comp
  • Headset: FSA IS-2
  • Saddle: Bontrager Arvada
  • Seatpost: Bontrager rigid
  • Brakes: Shimano MT400, 180/160mm rotors

Trek Procaliber 6 geometry

  • Seat angle: 72°
  • Head angle: 69.5°
  • Chainstay: 43.5cm / 17.13"
  • Seat tube: 47cm / 18.5"
  • Top tube: 64cm / 25.2"
  • Head tube: 10cm / 3.94"
  • Fork offset: 5.1cm / 2.01"
  • Trail: 8.3cm / 3.27"
  • Bottom-bracket drop: 5.8cm / 2.28"
  • Bottom-bracket height: 31cm / 12.2"
  • Wheelbase: 113cm / 44.49"
  • Stack: 60.4cm / 23.78"
  • Reach: 44cm / 17.32"

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trek procaliber 6

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Trek Procaliber 9.7 review

Alan Muldoon

  • Alan Muldoon
  • April 7, 2020

Crosses the finish line first because it’s the fastest bike. Simple.

Trek Procaliber 9.7

Trek Procaliber 9.7 Credit: Future PLC

Product Overview

Overall rating:, trek procaliber 9.7.

  • Speed with comfort
  • No dropper post

Manufacturer:

Price as reviewed:, editor’s choice 2020.

Since the dawn of mountain biking, engineers and enthusiasts have been trying to make the humble hardtail more compliant. We’ve had suspension seatposts, soft-tails, flex stay, curved stays, mono-stays and box stays. You name it, someone has tried it. No approach however, has been as effective as Trek’s IsoSpeed decoupler; first developed on its road bikes designed to race across the gruelling cobbles of Paris Roubaix.

And while the execution of the design is complex, like all good ideas, the concept is elegant in its simplicity. By decoupling the seat tube from the top tube, Trek is able to let the seat tube flex more easily, which in turn transmits less vibrabration to the rider. Or, to think about it another way, the seat stays run into the top-tube, instead of the back of the back seat tube.

Whatever way you slice it, Trek’s IsoSpeed decoupler offers a noticeably smoother ride when seated. So even though the Procaliber 9.7 isn’t one of the new breed of progressive XC hardtails with slacker geometry, we were still able to ride it faster with less fatigue than any other XC hardtail in test. It’s incredible turn of speed enhanced further by the Bontrager Kovee Elite carbon rims. They also tipped the balance of the scales in Trek’s favour too, as the Procaliber 9.7 was also the lightest bike in our XC hardtail test.

trek procaliber

The Trek Procaliber 9.7 crossed our finish line first because it’s the fastest bike on test. And in XC racing, that’s all that counts.

>>> MBR Trail Bike of the Year 2020

Modern XC race hardtails aren’t just designed to be ruthlessly efficient on the climbs. The best composite frames also use custom carbon layering, unique fibre alignments and sculpted tube profiles to engineer in compliance. And while the Procaliber 9.7 incorporates all of the above, Trek takes it one step further with its IsoSpeed technology.

First designed to improve the comfort of its road bikes, IsoSpeed decouples the seat tube from the top tube, which in turn allows the seat tube to flex more easily and transmit less trail buzz to the rider. The simple idea being, less systemic rider fatigue leaves more energy for turning pedals. Sounds great in theory, right? Well, the good news is, it’s even better in practice.

Yes, the extra tech involved in IsoSpeed adds a few grams to the frame weight, but Trek has still managed to produce the lightest bike in the test, even if it’s only 110g lighter than its closest rival, the Mondraker Chrono Carbon R. Most of the savings are rotational weight – the carbon Bontrager Kovee Elite wheels guaranteeing that the Trek is lightning fast off the start line.

trek procaliber 6

IsoSpeed decoupler is a game-changer

In fact we were so surprised to see carbon hoops on the Procaliber 9.7, we actually double-checked that Trek hadn’t sent a more expensive model by mistake. As it turns out it couldn’t have, even if it had wanted to, as the Procaliber 9.7 at is actually the most expensive XC hardtail that Trek offers in the UK.

trek procaliber 6

RockShox reba fork is responsive but also offers decent support

In the RockShox hierarchy, the 100mm-travel Reba on the Trek sits below the SID on the Mondraker but above the Judy on the Specialized Epic HT . It strikes a great balance in terms of performance too. On high-speed chatter it’s more forgiving on your hands than the SID, but it still offers more support for cornering and cranking hard than the Judy.

And if you really want to tighten up the response of the suspension fork for a spot of black-top blasting, the RockShox under-bar remote lockout is always within easy reach. It feels plastic-y compared to the remote on the Scott Scale 920, but thanks to the super-light cable action it’s effortless in use. And, because the release lever sits proud of the lockout lever, you always open up the fork when you reach for it in a moment of panic.

trek procaliber 6

Silicone grips save weight as well as your hands

Have we mentioned the Trek’s lightweight carbon wheels? Well, we should also highlight that they were the only wheels in the test to come set up tubeless. All you have to do is add sealant, which Trek kindly provides.

The contact points on the Procaliber are sorted too, and we particularly liked the ESI Chunky silicone grips . Granted the 12-Speed Eagle drivetrain with its 11-50t cassette doesn’t give you as wide a gear range as the Scott, but the SRAM XG-1230 cassette still offers a marked improvement in shifting performance over the Specialized.

Performance

When we first set eyes on the Trek, it wasn’t love at first sight. If anything, we thought the size large bike looked a little ungainly with its inverted 95mm stem and taller top tube. We even went as far as to peg it ‘the roadie’s mountain bike’.

Then we rode it. From the first pedal stroke the Procaliber took the lead in this test and never faltered. We were instantly won over by its effortless turn of speed, in part thanks to the carbon wheels, but it’s also about the more forgiving ride quality of the frame. Bumps just didn’t chip away at our speed as much as they did on the other bikes on test. And even when we were out of the saddle, the Procaliber was still the smoothest bike here. So much so, that the real limiting factor on rougher more technical terrain is saddle height. So while the weight savings of the OCLV carbon seatpost aren’t to be sniffed at, we’d swap it for a short-travel dropper in a heartbeat.

trek procaliber

Stablemates

Trek procaliber 6, £1,400.

This is the entry-level bike in the Procaliber range. It gets an Alpha Platinum aluminium frame rather than carbon, but it still sports the IsoSpeed design that decouples the top tube from the seat tube to offer a smoother, faster ride. The geometry and sizing also mirror our test winner, so handing should be on point too.

Trek Supercaliber 9.7, £4,000

If you want the look of a hardtail but an even more forgiving ride than the Procaliber 9.7, how about the new Supercaliber? With its IsoStrut design delivering 60mm of travel, it could well be the perfect balance between hardtail efficiency and weight saving, with full-suspension comfort and control.

What’s new for 2021?

Depending on personal preference and course conditions, Trek wanted to make it easier for riders or races to swap between the Procaliber hardtail and the Supercalibrer suspension bike. So for 2021 the sizing and geometry of the Procaliber has been brought inline with the 60mm travel Supercaliber. The end result is that the Procaliber gets a half a degree slacker head angle for improved steering stability. The reach measurement has also increased by 10mm, while the stem shortens by the same amount so the fit remains the same. All positive changes, that should guarantee the 2021 Procaliber retains its winning performance.

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2024 Trek Procaliber 6 Bike

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Specifications

Sizes and geometry.

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Trek Procaliber 6

  • AUS $ NZD $ USD $ CAD $ GBP £ EUR €

Size / SM, MD, MD/LG, LG, XL

At a glance

Where to buy.

Trek Logo

Specifications

  • Frame Alpha Platinum Aluminium, tapered head tube, internal routing, BSA 73, hidden rack and kickstand mounts, UDH, Boost148, 12 mm thru axle
  • Fork RockShox Judy Silver, Solo Air spring, TurnKey lockout, tapered steerer, 42mm offset, Boost110, 15 mm Maxle Stealth, 120 mm travel
  • Hubs Shimano TC500 alloy, CentreLock, 148x12 mm thru axle
  • Wheels Bontrager Kovee, double-wall, Tubeless-Ready, 28-hole, 23 mm width, Presta valve
  • Wheel Size 29"
  • Tires Bontrager Sainte-Anne Pro XR, Tubeless Ready, dual compound, aramid bead, 60 tpi, 29x2.20""
  • Chain Shimano Deore M6100, 12-speed
  • Crank Size: S, M, Shimano MT512, 30T ring, 55 mm chain line, 170 mm length; Size: M/L, L, XL, Shimano MT512, 30T ring, 55 mm chain line, 175 mm length
  • Bottom Bracket Shimano BB-MT501 BSA
  • Rear Derailleur Shimano XT M8100, long cage
  • Shifters Shimano Deore M6100, 12-speed
  • Brakeset Shimano MT200 hydraulic disc
  • Handlebar Size: S, M, Bontrager alloy, 31.8 mm, 5 mm rise, 720 mm width; Size: M/L, L, XL, Bontrager alloy, 31.8 mm, 15 mm rise, 750 mm width
  • Saddle Verse Short, steel rails, 145 mm width
  • Seatpost Size: S, M, Bontrager Line Dropper, 100mm travel, MaxFlow, internal routing, 31.6 mm, 310 mm length; Size: M/L, L, Bontrager Line Dropper, 150mm travel, MaxFlow, internal routing, 31.6 mm, 410 mm length; Size: XL, Bontrager Line Dropper, 170 mm travel, MaxFlow, internal routing, 31.6 mm, 450 mm length
  • Stem Size: S, Bontrager alloy, 31.8 mm, Blendr-compatible, 7-degree, 50 mm length; Size: M, M/L, Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 60 mm length; Size: L, Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 70 mm length; Size: XL, Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 80 mm length
  • Grips Bontrager XR Trail Comp, nylon lock-on

Q: How much is a 2024 Trek Procaliber 6?

A 2024 Trek Procaliber 6 is typically priced around €1,299 EUR when new. Be sure to shop around for the best price, and also look to the used market for a great deal.

Q: Where to buy a 2024 Trek Procaliber 6?

The 2024 Trek Procaliber 6 may be purchased directly from Trek .

Q: What size wheels does the 2024 Trek Procaliber 6 have?

The 2024 Trek Procaliber 6 has 29" wheels.

Q: What size 2024 Trek Procaliber 6 should I get?

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Trek Procaliber 9.6

Trek Procaliber 9.6 Review

by Ben Haworth June 11, 2023 0

Sure, you can ride the Trek Procaliber 9.6 whenever and wherever you like but the raison d’être of the Trek Procaliber is to perform between the race tape.

  • Brand : Trek
  • Product : Procaliber 9.6
  • Price : £2,550.00
  • From : trekbikes.com
  • Tested by : Benji for Singletrackworld Magazine Issue 149

trek procaliber 6

The other two hardtails in our ‘ Double Yer Money Hardtails ‘ test are all-rounder Traily McTrailface mountain bikes. This Trek Procaliber is decidedly not an all-rounder.

Rather than include a £2,400+ all-rounder trail hardtail, of which there are legion, we think it’s more illuminating and useful to go niche. To highlight the option of buying a very specific tool-for-the-job type of mountain bike.

The job for this Procaliber tool is cross-country racing. This is the sort of machine where the rides that aren’t actual races are called ‘training rides’.

trek procaliber 6

The USP of the Trek Procaliber 9.6 is Trek’s IsoSpeed feature. First seen on Trek’s road racing bikes designed for the cobbled ways of Flanders, IsoSpeed basically detaches the seat tube from the top tube, allowing it to flex fore-aft. It’s a very modern take on ye olde soft-tail designs that did the rounds in the nineties and noughties.

Whereas those older designs typically had some sort of spring placed inside a wishbone seat stay arrangement, the Trek Procaliber has a fixing placed just in front of the seat tube and below the top tube and a wedge of elastomery material in the join. I’ll get into how it feels on the trail shortly.

The frame is made from Trek’s OCLV Mountain grade of carbon and, quite frankly, it looks really rad. The waspish black and yellow colourway is particularly pleasing. The aesthetic helps offset the relatively unexciting build kit. The own-brand finishing kit, mid-tier Shimano stuff and fairly nondescript RockShox Recon fork are all fine but hardly set the pulse racing.

In some ways all these rather uninspiring black bits actually help the bike (frame) look as great as it does. The bars are suitably cross-country narrow. The stem is similarly cross-country-tastically lengthy (80mm). The Bontrager XR2 Team Issue tyres are thrillingly bald. The MT410 brakes and the Recon fork are the two main disappointing spec choices. It just looks a bit too cost-cutting on a bike that otherwise looks so fine.

Looking at the rest of the Procaliber range you’d have to spend £3,775 to get a spec that looks suitably snazzy (Procaliber 9.8 with Fox fork, carbon wheelset, Shimano XT and so on).

The geometry of the Procaliber is on the less progressive side of things, even for a cross-country bike: steep 68.8° head angle, short 450mm reach (Large), dinky 90mm head tube length (Large). Oh and no, there is no dropper seatpost.

trek procaliber 6

It can be hard to explain what makes a bike good at cross-country. It’s not just about being light and stiff. For trail riders, the geometry of cross-country race bikes is often entirely baffling. Steep head angles? Long stems? Narrow bars? Haven’t we left all that sort of stuff behind us?

The thing is, such geometry is not meant to be all-round effective. Cross-country geometry is principally meant to feel fast on climbs (the key word there being ‘feel’; racing is almost as much a mental exercise as physical). The narrow bars are arguably mainly there for aerodynamic reasons as much as anything. And if you have narrow bars (with a steep head angle) you need a lengthy stem to keep the front end from flailing madly when you’re redline drooling.

Why not put a slacker head angle on to cure everything? It’s hard to explain. The best explanation I can say is that it’s about pumping the terrain for even more speed. Cross-country races are won on anything that isn’t a descent. Descending speed is very much not important. Being fast downhill doesn’t win you races really. You can certainly lose races by being poor downhill, but you can’t win ’em. As such, the steep head angle is there to keep the front tyre contact patch nearer to you (usually a Really Bad Idea for Normal MTBing) so you can work the terrain underneath it for increased momentum.

Cross-country races are won primarily on the climbs, but the flatter and contouring stuff also matters a lot. Cross-country race geometry is a very specific system and the Trek Procaliber is more specific than most. And the Trek Procaliber is fast AF where and when it has to be. Sure, the downhills are more an exercise of holding-on rather than grinning-through, but the Procaliber’s grins can be found on race day podiums or (whisper it) Strava leaderboards.

All the boring black bits bolted to the Trek Procaliber 9.6 work fine. The fork is surprisingly active and combined with the IsoSpeed ‘rear suspension’ (when seated) actually makes for a remarkably un-punishing ride feel. There’s a reason the Procaliber is used by a lot of marathon endurance racers instead of a full-suspension bike. Also, by judicious use of the fork lockout, the Procaliber does the whole stood-up stamp-attack mode thing very well too.

I did think overall it would be even better with a dropper seatpost. Just a little one. The IsoSpeed system seems serendipitously perfect for dropper posts; droppers have zero fore-aft flex to them (unlike static seatposts) so IsoSpeed means you can run a dropper and still have a flexy perch experience.

trek procaliber 6

This Trek Procaliber 9.6 is a great example of how an increase in budget can gain you access to a world of specificity. I wouldn’t recommend the Procaliber for everyone. It’s not a bike I personally would have. But if anyone is looking for an effective weapon for cross-country racing (whether real world racing or imaginary online Strava racing) then this is very probably one of the best bikes for going as hard as possible for as long as possible on the tracks and terrain that the stopwatch unsparingly demands.

It is a bike that can attack tracks with the best of them, yet it is perfectly capable of having a recovery breather on when you need one. The active fork, supple tyres and undoubtedly the IsoSpeed ‘soft-tail’ feature afford you a pleasing respite from the sheer brutality of the bike’s out-of-the-saddle efficiency of propulsion. It’s something of a Lycra-clad Jekyll and Hyde creation. Sat down, it’s comfy and polite. Stood up, it’s a freaking monster.

trek procaliber 6

  • Frame // OCLV Mountain Carbon
  • Fork // RockShox Recon Gold RL LockOut, 100mm
  • Wheels // Bontrager Kovee Comp 23
  • Front tyre // Bontrager XR2 Team Issue 29×2.2
  • Rear tyre // Bontrager XR2 Team Issue 29×2.2
  • Chainset // Shimano MT611, 30T, 175mm
  • Drivetrain // Shimano SLX/XT, 12-speed, 10–51T
  • Brakes // Shimano MT410, 180/160mm
  • Stem // Bontrager Rhythm Comp, 80mm, 31.8mm
  • Bars // Bontrager Rhythm Comp, 750 x 15mm, 31.8mm
  • Grips // Bontrager XR Trail Comp Lock-on
  • Seatpost // Bontrager Comp, 31.6mm
  • Saddle // Bontrager Arvada
  • BB // Shimano MT500 PF92
  • Size tested // L
  • Sizes available // S, M, ML, L, XL, XXL
  • Head angle // 68.8°
  • Effective seat angle // 73.8°
  • Seat tube length // 470mm
  • Head tube length // 90mm
  • Effective top tube // 625mm
  • BB height // 60mm BB drop
  • Reach // 450mm
  • Chainstay // 432mm
  • Wheelbase // 1,133mm
  • Weight // 11.7kg

trek procaliber 6

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Orange Switch 6er. Stif Squatcher. Schwalbe Magic Mary Purple Addix front. Maxxis DHR II 3C MaxxTerra rear. Coil fan. Ebikes are not evil. I have been a writer for nigh on 20 years, a photographer for 25 years and a mountain biker for 30 years. I have written countless magazine and website features and route guides for the UK mountain bike press, most notably for the esteemed and highly regarded Singletrackworld. Although I am a Lancastrian, I freely admit that West Yorkshire is my favourite place to ride. Rarely a week goes by without me riding and exploring the South Pennines.

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Trek Procaliber 9.6 vs 9.7

trek procaliber 6

  • Add to quote

I would appreciate any input as to my current dilemma. I am somewhat new to mountain biking, although certainly not new to cycling. I’m in the process of buying a new mountain bike. Planning on riding some gravel roads, fire roads, and possibly some single track and I love climbing hills. I rented a gravel bike and I’m not a huge fan of drop bars tbh. I have narrowed it down to a couple of models (luckily both of these bikes are available, although I would have to drive out of state to get them, which isn’t an issue for me). Anyway, I’m looking at the 2021 models for the Procaliber 9.6 and the Procaliber 9.7. Both of which are XC Hardtails. I did have some interest in the Epic HTs but unfortunately none are in stock within a 1000 mile radius of me. The major differences between the two, at least to my eyes, is that the 9.6 has a Recon Fork (as opposed to the Reba Fork on the 9.7), a mainly SLX drivetrain (9.7 is running SRAM GX Eagle), and the 9.6 has an aluminum wheelset as opposed to carbon wheels on the 9.7. The 9.6 is retailing for $2780 while the 9.7 is $4200. My question to you guys is that so you think the upgrades on the 9.7 (there are other smaller ones but these are the ones that jumped out the most) are worth it? Budget would be around $3500-4000 but I wouldn’t mind paying a little more for something that would be the better deal.  

It sounds like you're a serious road biker, not wanting to disclose that in an mtb forum. Welcome! I'd go 9.7 for the fork and wheels, though the price jump does seem a bit steep. FWIW, I use my Procaliber as a gravel bike 90% of the time. Far more enjoyable on rougher rides than the Checkpoint.  

Because the benefits from the Isospeed decoupler are only available when you're seated the Procal makes a better gravel bike than trail bike where you're on your pedals. Neither the Reba or the Recon are any value as a trail fork because of the dampers.  

Right. A bit of comfortable "give" when seated. A freaking rocket when you stand up and put the whip to it!  

That's why its a good gravel bike for long rides. And that's why its a poor choice for trails with rocks/roots and features that the stiff, fast accelerating frame can transmit into your body. A couple hours of hard fun riding and you're beat up. Pick your terrain. Then pick the best bike. No one on the Trek XCO team used the Procal in anything other than flat track competition. That's why Trek built the Supercaliber. But it's expensive for what you get. 23mm rim wheels and 32mm StepCast don't cut it. Nino uses 30mm rim wheels.  

Supercaliber 9.8 GX Gen 1 - Trek Bikes

www.trekbikes.com

Me too. Just cant afford one.  

trek procaliber 6

the difference is 0.1  

jtarr said: I would appreciate any input as to my current dilemma. I am somewhat new to mountain biking, although certainly not new to cycling. I'm in the process of buying a new mountain bike. Planning on riding some gravel roads, fire roads, and possibly some single track and I love climbing hills. I rented a gravel bike and I'm not a huge fan of drop bars tbh. I have narrowed it down to a couple of models (luckily both of these bikes are available, although I would have to drive out of state to get them, which isn't an issue for me). Anyway, I'm looking at the 2021 models for the Procaliber 9.6 and the Procaliber 9.7. Both of which are XC Hardtails. I did have some interest in the Epic HTs but unfortunately none are in stock within a 1000 mile radius of me. The major differences between the two, at least to my eyes, is that the 9.6 has a Recon Fork (as opposed to the Reba Fork on the 9.7), a mainly SLX drivetrain (9.7 is running SRAM GX Eagle), and the 9.6 has an aluminum wheelset as opposed to carbon wheels on the 9.7. The 9.6 is retailing for $2780 while the 9.7 is $4200. My question to you guys is that so you think the upgrades on the 9.7 (there are other smaller ones but these are the ones that jumped out the most) are worth it? Budget would be around $3500-4000 but I wouldn't mind paying a little more for something that would be the better deal. Click to expand...
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Trek Procaliber 6 mountain Bike 2024 Viper Red/Crimson

Trek Procaliber 6 mountain Bike 2024 Satin Trek Black/Lithium Grey

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Season:2024

Code:5301899-TREK24

It's right for you if...

You want to dive into XC racing on a hardtail that's built to soar up climbs and stay composed through the rough stuff. You want to save some dough with a sturdy alloy frame, and don't mind upgrading your components over time.

The tech you get

A lightweight Alpha Platinum Aluminium hardtail frame with modern XC geometry and 148 mm boost spacing for stiff support under power. 120 mm of trail-smoothing front suspension from a RockShox Judy Silver fork with Solo Air spring and Turnkey lockout. Clean shifting 12-speed Shimano drivetrain that blends Deore and XT together, Tubeless-Ready Bontrager Kovee wheels, a Bontrager Line dropper post with internal routing and hydraulic disc brakes.

The final word

Ready to race? So is Procaliber 6. This XC race ride balances performance and price for riders looking to up their game between the tape. Its modern XC geometry keeps you cool through the rough and ready to hammer up climbs, and reliable yet affordable components get you on the trail fast without blowing through your upgrade budget.

Trek Procaliber 6 Mountain Bike Highlights

  • You get modern geometry and 120 mm of front suspension that keeps you in the attack on climbs and crushing confidently on descents
  • It balances the accessible price of an alloy hardtail with the performance of its carbon cohorts
  • The 12-speed one-by drivetrain gives you plenty of gears for hammering up climbs with the simplicity of a single shifter
  • Its Tubeless Ready 29in wheels keep rolling resistance down while helping fight flats
  • Internal cable routing keeps your ride quiet, reduces maintenance and looks sleek

Write a review for Trek Procaliber 6 mountain Bike 2024 Viper Red/Crimson

Also in the range.

  • £3500 £3500 Trek Procaliber 9.7 AXS Mountain Bike 2024 White Prismatic
  • £3500 £3500 Trek Procaliber 9.7 AXS Mountain Bike 2024 Carbon Blue Smoke/Deep Dark Blue
  • £2000 £2000 Trek Procaliber 9.6 Mountain Bike 2024 Galactic Grey/Lithium Grey
  • £2000 £2000 Trek Procaliber 9.6 Mountain Bike 2024 Mulsanne Blue
  • £1400 £1400 Trek Procaliber 8 mountain Bike 2024 Power Surge/Mercury
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  • £1200 £1200 Trek Procaliber 6 mountain Bike 2024 Satin Trek Black/Lithium Grey
  • £2999 £3250 Trek Procaliber 9.8 Mountain Bike Carbon Red Smoke/Crimson
  • £2299 £2600 Trek Procaliber 9.7 Mountain Bike 2023 Roarange/Deep Smoke
  • £2025 £2025 Trek Procaliber 9.6 Mountain Bike 2023 Marigold/Deep Smoke
  • £1275 £1675 Trek Procaliber 9.5 Mountain Bike 2023 Mercury
  • £2025 £2025 Trek Procaliber 9.6 29er Hardtail Mountain Bike 2023 Blue Carbon Smoke
  • £1599 £2350 Trek Procaliber 9.6 29er Hardtail Mountain Bike 2022 Volt/Raw Carbon
  • £2499 £3050 Trek Procaliber 9.7 29er Hardtail Mountain Bike 2022 Navy Smoke
  • £2399 £2600 Trek Procaliber 9.7 29er Hardtail Mountain Bike 2023 Crystal White
  • £2999 £3250 Trek Procaliber 9.8 29er Hardtail Mountain Bike 2022 Prismatic/Black
  • £3099 £3775 Trek Procaliber 9.8 29er Hardtail Mountain Bike 2022 Red/Cobra Blood

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  • Procaliber 6

trek procaliber 6

  • Crosscountry
  • Rider Notes

2019 Trek Procaliber 6

trek procaliber 6

A 27.5″ / 29″ aluminum frame hardtail crosscountry bike with high-end components. Compare the full range

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Based on frame geometry and build specs.

A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

Procaliber 6

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Bikerumor

Building on it’s IsoSpeed equipped predecessor’s comfort and the modern geometry of the short-travel Supercaliber, the all-new Trek Procaliber hardtail gets all the right updates. Modern geometry, cleaner cable routing, and improved steer-ability make it faster than ever. What’s new about the 2021 Trek Procaliber? The geometry’s the biggest change you’re likely to feel. Based […]

Read Review

MBR

Apr 2020 · Alan Muldoon

The Trek Procaliber 9.7 crossed our finish line first because it’s the fastest bike on test. And in XC racing, that’s all that counts.

Speed with comfort

No dropper post

Bicycling

This hardtail is a lightweight and dependable mountain bike with a carbon frame and wheels.

Bontrager Kovee Elite 23 Carbon, tubeless-ready wheels

Lightweight carbon frame with IsoSpeed decoupler

100mm RockShox Reba RL fork with remote lockout

Handlebar is on the narrow side

BikeRadar

Mar 2019 · Guy Kesteven

Accurate, versatile frame with a great spec, but bar and IsoSpeed bounce won’t suit everyone

Stiff, accurate frame

Dropper and bigger-tyre friendly

Judy fork and Eagle gears

Shock-shrugging IsoSpeed

IsoSpeed takes a wallop to start moving and then a while to stop

Backswept bar and seat tube won’t suit all

Surprisingly slow tyres

Gran Fondo Magazine

Dec 2017 · Robin Schmitt

How does a pro-level mountain bike from the XC World Cup compete against a gravel bike? We tested the Trek Procaliber 9.9 SL Race Shop Limited to find out.

Mountain Bike Action

Nov 2017 · MBA Action

Trek takes their IsoSpeed Decoupler and builds it into a more affordable aluminum frame.

Jul 2016 · Wil Barrett

Is the Trek Procaliber the most comfortable hardtail on the market? Wil investigates with his longerm test bike

Flow Mountain Bike

What is it? The Procaliber 9.8 SL comes from a three-tiered lineup of carbon hardtails, Trek’s premium cross country race bike. Used by the Trek Factory team including Aussie champs Bec Henderson and Dan McConnell this frame has been widely accepted in the racing community. The Procaliber uses Trek’s Smart Wheel Size arrangement, meaning the …

IsoSpeed is successful in taking the sting out of the trail when seated.

Stunning frame construction.

Lightweight parts.

Not to be confused as a suspension bike, it's still a hardtail.

99 Spokes on YouTube

Last updated 16 September Not listed for 1,754 days

IMAGES

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  2. Trek Procaliber 6 Mountain Bike 2020

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  3. Trek Procaliber 6 2020 Mountainbike

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  4. Trek Procaliber 6 Hardtail Mountain Bike 2019 Metallic Gunmetal

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COMMENTS

  1. Procaliber 6

    Procaliber 6 is a fast cross country mountain bike and the most affordable MTB model with IsoSpeed—a decoupler at the top tube/seat tube junction that provides additional compliance on rough courses. IsoSpeed gives you a unique and substantial advantage over a traditional hardtail, because it cuts down on the trail's fatiguing bumps and ...

  2. Trek Procaliber 6 2024 Review

    With the Procaliber 6, Trek is building its race hardtail not only from carbon, but also from aluminum for the first time. With 120 mm travel on the fork, the Americans are following the current trend of giving hardtails a wider range of use. We have checked all geometry measures and come to the following conclusion: the Procaliber 6 is a very ...

  3. Trek Procaliber 6 review

    If you are looking for a mountain bike that combines speed, comfort and versatility, you might want to check out the Trek Procaliber 6 review by BikeRadar. This bike features a unique IsoSpeed ...

  4. 2024 Trek Procaliber 6

    Sure, you can ride the Trek Procaliber 9.6 whenever and wherever you like but the raison d'être of this bike is to perform between race tape. Read Review. Geometry. Specs. Build. Frame: Alpha Platinum Aluminum, tapered head tube, internal routing, BSA 73, hidden rack and kickstand mounts, UDH, Boost148, 12mm thru axle.

  5. 2020 Trek Procaliber 6

    Trek Procaliber w/ IsoSpeed flex becomes a faster, nimbler race mountain bike. Building on it's IsoSpeed equipped predecessor's comfort and the modern geometry of the short-travel Supercaliber, the all-new Trek Procaliber hardtail gets all the right updates. Modern geometry, cleaner cable routing, and improved steer-ability make it faster ...

  6. Trek Procaliber 6 2024 Mountain Bike

    A cross-country hardtail with modern geometry, 120 mm fork, 12-speed drivetrain and hydraulic brakes. Buy from Evans Cycles, UK's leading specialist bike shop, with home delivery or click & collect options.

  7. Procaliber 6

    Procaliber 6 is a fast cross country mountain bike and the most affordable MTB model with IsoSpeed—a decoupler at the top tube/seat tube junction that provides additional compliance on rough courses. IsoSpeed gives you a unique and substantial advantage over a traditional hardtail, because it cuts down on the trail's fatiguing bumps and ...

  8. 2019 Trek Procaliber 6

    A cross country mountain bike with IsoSpeed decoupler, RockShox fork, SRAM NX Eagle drivetrain and Bontrager wheels. Compare prices, components, suspension, reviews and more on MTB Database.

  9. Procaliber 6

    Procaliber 6. Model 565057. Retailer prices may vary depending on location and delivery method. The final price will be shown in your basket. The Procaliber 6 is a fast cross-country mountain bike and the most affordable MTB model with IsoSpeed - a decoupler at the top tube/seat tube junction that provides additional compliance on rough courses.

  10. Trek Procaliber 9.7 review

    Trek Procaliber 6, £1,400. This is the entry-level bike in the Procaliber range. It gets an Alpha Platinum aluminium frame rather than carbon, but it still sports the IsoSpeed design that decouples the top tube from the seat tube to offer a smoother, faster ride. The geometry and sizing also mirror our test winner, so handing should be on ...

  11. 2024 Trek Procaliber 6 Bike

    Procaliber 9.6. $3,099.99. Buy. Free shipping on orders over $50 (continental U.S. only). International shipping available. Some exclusions apply. Browse available Bikes. Free Delivery on purchases over £20. Browse available Bikes.

  12. 2019 Trek Procaliber 6

    Trek Procaliber 6 review. Mar 2019 · Guy Kesteven. Stiff, accurate frame. Dropper and bigger-tyre friendly. Judy fork and Eagle gears. Shock-shrugging IsoSpeed. IsoSpeed takes a wallop to start moving and then a while to stop. Backswept bar and seat tube won't suit all. Surprisingly slow tyres.

  13. Trek Procaliber 6 Hardtail Mountain Bike 2018 Matte Dnister Black

    The Trek Procaliber 6 Hardtail Mountain Bike 2018 is a fast cross-country mountain bike, and the most affordable model in the line-up that's equipped with the IsoSpeed decoupler.. The IsoSpeed decoupler features at the top of the tube/seat tube junction and allows the seat tube to rotate independently from the junction, increasing vertical compliance without compromising pedalling efficiency ...

  14. 2018 Trek Procaliber 6

    The Procaliber 9.8 SL comes from a three-tiered lineup of carbon hardtails, Trek's premium cross country race bike. Used by the Trek Factory team including Aussie champs Bec Henderson and Dan McConnell this frame has been widely accepted in the racing community.

  15. 2024 Trek Procaliber 6

    The 2024 Trek Procaliber 6 is an Trail Aluminium / Alloy mountain bike. It sports 29" wheels, is priced at €1,299 EUR, comes in a range of sizes, including SM, MD, MD/LG, LG, XL, has RockShox suspension and a Shimano drivetrain. The bike is part of Trek 's Procaliber range of mountain bikes.

  16. Procaliber 6

    Procaliber 6 is a fast cross country mountain bike and the most affordable MTB model with IsoSpeed—a decoupler at the top tube/seat tube junction that provides additional compliance on rough courses. IsoSpeed gives you a unique and substantial advantage over a traditional hardtail, because it cuts down on the trail's fatiguing bumps and ...

  17. Trek Procaliber 9.6 Review

    The USP of the Trek Procaliber 9.6 is Trek's IsoSpeed feature. First seen on Trek's road racing bikes designed for the cobbled ways of Flanders, IsoSpeed basically detaches the seat tube from ...

  18. Trek Procaliber 9.6 vs 9.7

    Trek Procaliber 9.6 vs 9.7. I would appreciate any input as to my current dilemma. I am somewhat new to mountain biking, although certainly not new to cycling. I'm in the process of buying a new mountain bike. Planning on riding some gravel roads, fire roads, and possibly some single track and I love climbing hills.

  19. Trek Procaliber 6 mountain Bike 2024 Viper Red/Crimson

    The Trek Procaliber 6 Mountain Bike is a cross-country mountain bike built for hot laps and singletrack. It confidently rolls the fine line between race-ready and pocket-friendly with an alloy frame that's built with modern geometry for handling fast corners and rough sections of trail while keeping you ready to sprint up climbs. A 12-speed ...

  20. Procaliber 6

    Procaliber 6 is a fast cross country mountain bike and the most affordable MTB model with IsoSpeed—a decoupler at the top tube/seat tube junction that provides additional compliance on rough courses. IsoSpeed gives you a unique and substantial advantage over a traditional hardtail, because it cuts down on the trail's fatiguing bumps and ...

  21. 2024 Trek Procaliber 9.6

    Sure, you can ride the Trek Procaliber 9.6 whenever and wherever you like but the raison d'être of this bike is to perform between race tape. Read Review. Geometry. Specs. Build. Frame: OCLV Mountain Carbon, IsoSpeed, tapered head tube, Knock Block, internal control routing, balanced post mount brake, Boost148.

  22. 2019 Trek Procaliber 6

    2019 Trek. Procaliber 6. A 27.5″ / 29″ aluminum frame hardtail crosscountry bike with high-end components. Compare the full range. Manufacturer Price. $1,999. Weight: