Trek Procaliber 6 Mountain Bike 2026 - Hardtail MTB

Lightweight, fast and confidence-inspiring, the Procaliber 6 delivers XC precision with a robust alloy frame, smooth RockShox suspension and a wide-range Shimano 12-speed drivetrain. Perfect for aspiring racers and trail riders alike.
Key Features:
- Alpha Platinum Aluminium frame with modern XC geometry and internal cable routing
- RockShox Judy Silver fork with 120mm travel and TurnKey lockout
- Shimano Deore/XT 12-speed drivetrain with 10-51T wide-range cassette
- Shimano MT200 hydraulic disc brakes for reliable stopping power
- 29" Bontrager Kovee wheels with Sainte-Anne Pro XR tubeless-ready tyres
- Bontrager Line dropper post for on-the-fly saddle adjustment
- Available with 0% APR finance
The Trek Procaliber 6 is designed to be your fast track into cross-country mountain biking, delivering performance-focused features in a value-packed hardtail package. Its Alpha Platinum Aluminium frame keeps the weight low while offering stiffness where you need it most especially when sprinting, climbing or cornering at speed. With modern XC geometry, this bike balances aggressive handling with stability to help you feel confident on technical terrain.
Up front, the RockShox Judy Silver fork offers 120mm of travel (a touch more than a typical XC setup) giving it the versatility to take on rock gardens and root-laced descents with ease. The Solo Air spring helps smooth out hits while the TurnKey lockout lets you stiffen things up on smoother climbs and fire-road sprints.
The drivetrain combines Shimano Deore and XT components, giving you 12-speed shifting with crisp performance and a wide 10-51T cassette range. It’s single-ring simplicity up front with all the gear range you need out back perfect for climbing without giving up speed on flats or descents.
Shimano MT200 hydraulic disc brakes give you confident control whether you're racing between the tape or out for a weekend blast, while the Bontrager Kovee wheels come tubeless-ready, paired with Sainte-Anne Pro XR 29x2.20" tyres for great grip and a faster-rolling setup that resists flats.
A Bontrager Line dropper post with internal routing is a welcome bonus on tricky terrain, letting you get the saddle out of the way on steeper descents. With integrated cable routing for a clean look and Boost hub spacing for added wheel stiffness and tyre clearance, the Procaliber 6 is ready to grow with you as your skills and speed progress.
Whether you're lining up at your first race or pushing your pace on local loops, the Trek Procaliber 6 delivers trail-worthy tech and ready-to-race performance in an affordable, upgrade-friendly package.
Occasionally, without notice, manufacturers change product design and/or 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 |
| Headset | Semi-integrated, loose ball bearing, 1-1/8" top, 1.5" bottom |
| Stem | Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 70 mm length |
| Bars | Bontrager alloy, 31.8 mm, 15 mm rise, 750 mm width |
| Front Brake | Shimano MT200 Hydraulic Disc |
| Rear Brake | Shimano MT200 Hydraulic Disc |
| Rear Mech | Shimano XT M8100, long cage |
| Speed | 12 |
| Rims | Bontrager Kovee, double-wall, Tubeless-Ready, 28-hole, 23 mm width, Presta valve |
| Front Hub | Shimano TC500 alloy, CentreLock, 110x15 mm thru axle |
| Rear Hub | Shimano TC500 alloy, CentreLock, 148x12 mm thru axle |
| Front Tyre | Bontrager Sainte-Anne Pro XR, Tubeless Ready, dual compound, aramid bead, 60 tpi, 29x2.20" |
| Rear Tyre | Bontrager Sainte-Anne Pro XR, Tubeless Ready, dual compound, aramid bead, 60 tpi, 29x2.20" |
| Seat Post | Bontrager Line Dropper, 150mm travel, MaxFlow, internal routing, 31.6 mm, 410 mm length |
| Saddle | Verse Short, steel rails, 145 mm width |
| Chainset | Shimano MT512, 30T ring, 55 mm chain line, 175 mm length |
| Bottom Bracket | Shimano BB-MT501 BSA |
| Chain | Shimano Deore M6100, 12-speed |
| Cassette | Shimano Deore M6100, 10-51, 12-speed |
| Pedals | VP-536 nylon platform |
Mountain Bike Size Chart
|
Height
|
Bike Size
|
Mountain Bike Size
|
|
4’8” – 5’1”
143 – 155 cm
|
XXS
|
13” (33 cm)
|
|
5’1” – 5’4”
155 – 163 cm
|
XS
|
15” (38 cm)
|
|
5’4” – 5’7”
163 – 170 cm
|
S
|
16” (41 cm)
|
|
5’7” – 5’10”
170 – 178 cm
|
M
|
18” (46cm)
|
|
5’10” – 6’0”
178 – 183 cm
|
L
|
19” (48cm)
|
|
6’0” – 6’3”
183 – 191 cm
|
XL
|
20” (51 cm)
|
|
6’3” – 6’5”
191 – 196 cm
|
XXL
|
21” (53 cm)
|
|
6’5” – 6’9”
196 – 205 cm
|
XXXL
|
22” (56 cm)
|
* Mountain bikes are sized differently to road bikes. Typically, they are sized in inches as the first MTBs were produced in the USA. European brands like Lapierre and Haibike like to use centimetres for all their bikes. The measurements of their mountain bikes doesn’t match their road bikes but are like a simple conversion from the inches measurement. This is why we have included cm measurements in brackets for the Mountain bike column.
Read our bike size guide for more information on sizing.
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Trek Procaliber 6 Mountain Bike 2026 - Hardtail MTB
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