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The Trek Procaliber 8 is a race-ready XC hardtail with a light alloy frame, 120 mm RockShox fork and 12-speed Shimano XT/SLX for fast climbs and confident descents.
The Trek Procaliber 8 is a race-ready XC hardtail with a light alloy frame, 120 mm RockShox fork and 12-speed Shimano XT/SLX for fast climbs and confident descents.
Trek

Trek Procaliber 8 Mountain Bike 2026 in Fury Red

£1,300.00
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In the unlikely event that you are not satisfied with your purchase please feel free to return your items within 90 days of the purchase date for a full exchange or refund. Any item (excluding food, underwear or e-gift vouchers) can be returned to us for any reason within 90 days, provided that the item has not been used or fitted and is returned in its original packaging with valid proof of purchase.

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Items must be returned in their original packaging and unused. Refunds will be issued once the product(s) have been received and inspected.

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Please note:
1. If the items we have sent you are faulty, damaged or not as we described, we will cover the cost of collection and the delivery of the correct item.

2. If we have delivered the correct bike but upon inspection, you decide the bike is not the one for you, we will charge you £50 for collection (£100 from Northern Ireland). If you do not have the original box in usable condition, we will charge you an additional £15 to provide one.

Refunds will be processed using the same method of payment used for the original purchase. Credit & debit card refunds must be made to the card used for the original purchase.

We are unable to offer a refund without a valid proof of purchase.

Trek Procaliber 8 Mountain Bike 2026 in Fury Red

Season:2026

Brand:Trek

Code:57370RD

The Procaliber 8 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 Shimano SLX and XT drivetrain and 120 mm RockShox Recon Gold fork seal the deal with all the gears and rock-smoothing comfort you need.

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 the best in performance and reliability for every ride.

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 Recon Gold RL fork with Debon Air spring, Motion Control damper and lockout. A clean shifting blend of 12-speed Shimano XT and SLX components, Tubeless-Ready Bontrager Kovee wheels, a Bontrager Line dropper post with internal routing and hydraulic disc brakes.

When you're ready to take on race day, reach for the Procaliber 8. This alloy hardtail has a speedy attitude with modern cross-country geometry that's dialled for hammering up climbs and keeps its composure on loose descents.

Key Features & Benefits:

  • Alpha Platinum Aluminium Frame:Lightweight and durable.
  • Hydraulic Disc Brakes:Consistent & powerful braking performance for better control and confidence in race conditions.
  • 12 Shimano XT/SLX Gears:Wide range of gears suitable for all terrain, with the simplicity of a single shifter.

Full 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 Recon Gold RL, DebonAir spring, Motion Control damper, lockout, tapered steerer, 42mm offset, Boost110, 15 mm Maxle Stealth, 120mm travel
  • Number of Gears:12
  • Gear Shifters:Shimano SLX M7100, 12-speed
  • Chainset:E*thirteen Helix, 30T steel ring, 73 mm spindle length, 52 mm chainline, 170 - 175 mm length
  • Chainrings:30T, Max. 34T
  • Rear Cassette:Shimano SLX M7100, 10-51T, 12-speed
  • Chain:Shimano SLX M7100, 12-speed
  • Rear Derailleur:Shimano XT M8100, long cage
  • Bottom Bracket:Shimano BB-MT501 BSA
  • Pedals:VP-536 nylon platform
  • 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:Maxxis Rekon Race, tubeless ready, EXO casing, folding bead, 60 tpi, 29x2.40"
  • Rear Tyre:Maxxis Rekon Race, tubeless ready, EXO casing, folding bead, 60 tpi, 29x2.40"
  • Brakes:Shimano hydraulic disc, MT4100 lever, MT410 calliper
  • Handlebars:Bontrager Comp, alloy, 31.8 mm, 5 mm rise, 720 - 750 mm width
  • Handlebar Grips:Trek Line Comp, nylon lock-on
  • Stem:Bontrager Comp, 31.8 mm, Blendr-compatible, 7-degree, 50 - 80 mm length
  • Saddle:Verse Short, chromoly rails, 145 mm width
  • Seatpost:Bontrager Line Dropper, 100 - 170 mm travel, MaxFlow, internal routing, 31.6 mm, 310 - 450 mm length
  • Weight:12.78 kg
Manufacturers reserve the right to change specifications without notice based on availability at the point of assembly.

Size Guide for Trek Procaliber

SizeRider HeightRider HeightInseamInseam
S155 - 165 cm5'1" - 5'5"74 - 78 cm29" - 31"
M165 - 176 cm5'5" - 5'9"79 - 83 cm31" - 33"
M/L173 - 180 cm5'8" - 5'11"81 - 86 cm32" - 34"
L177 - 188 cm5'10" - 6'2"84 - 89 cm33" - 35"
XL188 - 195 cm6'2" - 6'5"89 - 91 cm35" - 36"

Geometry Information for Trek Procaliber


Frame size letterSMMLLXL
Wheel size29"29"29"29"29"
A — Seat tube39.042.044.446.051.0
B — Seat tube angle71.0°71.5°72.0°72.5°73.0°
Effective seat tube angle74.3°74.3°74.3°74.3°74.3°
C — Head tube length999912
D — Head angle67.0°67.0°67.0°67.0°67.0°
E — Effective top tube57.759.861.362.867.7
F — Bottom bracket height6.46.46.46.46.4
G — Bottom bracket drop43.043.043.043.043.0
H — Chainstay length4.34.34.34.34.3
I — Offset111.0113.5115.5117.1122.7
J — Trail74.774.975.876.379.1
K — Wheelbase40.543.044.546.050.0
L — Standover61.461.461.461.464.2

Warranty Information for Trek:

Lifetime warranty on Frame sets (frame and rigid fork), main frame and full suspension swing arms for the lifetime of the original owner, and Bontrager wheels with carbon rims.

2-year warranty on Rear suspension linkage components, including bearings, rocker link and accompanying hardware and components, Bontrager wheels with alloy rims, Paint and transfers.

For full warranty policy please visit trekbikes.com

Sizing Information
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