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2020 Trek

Procaliber 6

A 27.5″ / 29″ aluminum frame hardtail crosscountry bike with upper mid-range components.
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Manufacturer Price

1999 USD(1726 €)
Weight12,2 kg  
FrameAluminum
SuspensionHardtail, 100mm
ForkRockShox Judy
Wheels27.5″ / 29″ Aluminum
Drivetrain1 × 12
GroupsetNX Eagle, SX Eagle
BrakesShimano Hydraulic Disc
Where to Buy
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Insights
Ride Feel

Based on frame geometry and build specs.

Terrain
easyextreme
Handling
nimblestable
Procaliber 6
Other Crosscountry bikes
Gearing

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.

Lowest gear

(climbing)

38 km/h

Procaliber 6

44 km/h

Similar Bikes

Highest gear

(descending)

Sizing
XS

137cm – 155cm

SM

153cm – 167cm

MD

161cm – 172cm

MD/LG

165cm – 179cm

LG

177cm – 188cm

XL

186cm – 197cm

XXL

194cm – 203cm

Rider Fit Notes
  • 161cm, size MD, Just right
Reviews

Summary

The Trek Procaliber is a standout in the cross-country category, praised for its lightweight carbon frame and innovative IsoSpeed decoupler that enhances ride comfort. It offers a smooth, fast ride with efficient power transfer, though some models may lack in steering precision or component performance. The bike's geometry and suspension are tailored for competitive racing, making it a favorite among XC enthusiasts.

Pros
  • Lightweight carbon frame with IsoSpeed decoupler

  • Tubeless-ready carbon wheels

  • Modern geometry for improved stability

  • Efficient power transfer and swift acceleration

  • Comfortable ride quality with significant vertical compliance

Cons
  • Steering precision can be lacking in some models

  • IsoSpeed benefits limited to seated riding

  • Higher-end models may be expensive

  • Some component groups may not match the performance of pricier alternatives

Key Quotes
The Procaliber 9.7 is one of the best hardtail mountain bikes you can buy for less than four grand.
Bicycling
Building on it’s comfort and the modern geometry of the short-travel Supercaliber, the all-new Trek Procaliber hardtail gets all the right updates.
Bikerumor logoBikerumor
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 logoMBR

Feedback?

View all reviews

Bikerumor
Trek Procaliber w/ IsoSpeed flex becomes a faster, nimbler race mountain bike

Aug 2020 · Tyler Benedict

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
Trek Procaliber 9.7 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.

Highs
  • Speed with comfort

Lows
  • No dropper post

Read Review

Bicycling
High Performance and High Value Meet in the Trek Procaliber 9.7

Mar 2020 · Bobby Lea

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

Highs
  • Bontrager Kovee Elite 23 Carbon, tubeless-ready wheels

  • Lightweight carbon frame with IsoSpeed decoupler

  • 100mm RockShox Reba RL fork with remote lockout

Lows
  • Handlebar is on the narrow side

Read Review

BikeRadar
Trek Procaliber 6 review

Mar 2019 · Guy Kesteven

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

Highs
  • Stiff, accurate frame

  • Dropper and bigger-tyre friendly

  • Judy fork and Eagle gears

  • Shock-shrugging IsoSpeed

Lows
  • 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

Read Review

Gran Fondo Magazine
Trek Procaliber 9.9 SL Race Shop Limited Review

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.

Read Review

Mountain Bike Action
Review - Trek Procaliber 8

Nov 2017 · MBA Action

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

Read Review

Geometry
Specs
Build
Frame

Alpha Platinum Aluminum, IsoSpeed, tapered head tube, internal derailleur routing, balanced post mount brake, Boost148, 12mm thru axle

BB StandardBB86/BB92, Press Fit

Tire Clearance2.4"

Fork

Size: XS, RockShox Judy Gold, Solo Air spring, Motion Control damper, remote lockout, tapered steerer, 42mm offset, Boost110, 15mm Maxle Stealth, 80mm travel; Size: S, M, M/L, L, XL, RockShox Judy Gold, Solo Air spring, Motion Control damper, remote lockout, tapered steerer, 42mm offset, Boost110, 15mm Maxle Stealth, 100mm travel

Travel100mm

Spring TypeAir

Bottom Bracket

SRAM DUB, 92mm, PressFit

Headset

FSA IS-2, 1-1/8'' top, 1.5'' bottom

Stem

Size: XS, S, Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 70mm length; Size: M, M/L, Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 80mm length; Size: L, Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 90mm length; Size: XL, Bontrager Elite, 31.8mm clamp, Blendr compatible, 7 degree, 100mm length

Handlebar

Size: XS, Bontrager Comp, alloy, 31.8mm, 5mm rise, 690mm width; Size: S, M, M/L, L, XL, Bontrager Comp, alloy, 31.8mm, 5mm rise, 720mm width

Saddle

Bontrager Arvada, hollow chromoly rails, 138mm width

Seatpost

Bontrager Comp, 6061 alloy, 31.6mm, 8mm offset, 400mm length

TypeRigid

Pedals

VP-536 nylon platform

Grips

Bontrager XR Trail Comp, nylon lock-on

Groupset
Rear Derailleur

SRAM NX Eagle

Crank

Size: XS, S, SRAM SX Eagle, DUB, 30T steel ring, Boost, 170mm length; Size: M, M/L, L, XL, SRAM SX Eagle, DUB, 30T steel ring, Boost, 175mm length

Shifters

SRAM SX Eagle, 12 speed

Cassette

SRAM PG-1210 Eagle, 11-50, 12 speed

Chain

SRAM NX Eagle, 12 speed

Brakes

Shimano hydraulic disc, MT401 lever, MT400 caliper

TypeShimano Hydraulic Disc

Wheels
Rims

Bontrager Kovee, double-wall, Tubeless Ready, 28-hole, 23mm width, presta valve

Front Hub

Bontrager alloy, sealed bearing, alloy axle, centerlock, Boost110, 15mm thru axle

Rear Hub

Bontrager alloy, sealed bearing, centerlock, Shimano 8/9/10 freehub, Boost148, 12mm thru axle

Tires

Size: XS, S, Bontrager XR2 Team Issue, Tubeless Ready, Inner Strength sidewall, aramid bead, 120 tpi, 27.5x2.20''; Size: M, M/L, L, XL, Bontrager XR2 Team Issue, Tubeless Ready, Inner Strength sidewall, aramid bead, 120 tpi, 29x2.20''

Rider Notes
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First added 10 October

Last updated 21 August

Not listed for 2,121 days