Trek Procaliber 8 - MTB Hardtail 2027 | red serpentine
The Procaliber 8 is a fast, high-performance cross-country hardtail built to chase new best times on singletrack and compete at the front of the pack on race day. Its Alpha Platinum Aluminum frame ensures confident handling in tight turns and on rough sections, while the RockShox Recon Gold fork, with its 120 mm of travel, efficiently smooths out every trail. A wide-range SRAM Eagle 12-speed drivetrain, lightweight Bontrager Kovee wheels, and Shimano hydraulic disc brakes round out the spec, so you can go all out anytime, anywhere.
A lightweight hardtail frame made of Alpha Platinum aluminum with modern XC geometry including 148mm Boost installation width for more stiffness and stability under load as well as a trail-smoothing RockShox Recon Gold RL fork with 120 mm travel, DebonAir spring, Motion Control damper and lockout. You also get a clean-shifting 12-speed drivetrain with SRAM Eagle 70 components, Bontrager Kovee tubeless-ready wheels, a Bontrager Line dropper post with internal cable routing and hydraulic disc brakes. If you're standing at the start line on race day, you'd better be on the Procaliber 8. This aluminum hardtail has plenty of speed in its genes. It is based on a modern cross-country geometry that gives you plenty of speed on climbs and always radiates calm on challenging descents.
Frame: Alpha Platinum aluminum, tapered head tube, internal cable routing, BSA 73, hidden rack and kickstand mounts, UDH, Boost148, 12mm thru axle
Size (effective top tube): 29" - S (58cm), M (60cm), ML (61.5cm), L (63cm), XL (67.5cm)
Fork: RockShox Recon Gold RL, DebonAir air spring, Motion Control damper, lockout, tapered steerer tube, 42mm offset, Boost110, 15mm Maxle Stealth axle, 120mm travel
Headset: Semi-integrated, sealed compact bearing, aluminum shells, 1 1/8" top, 1.5" bottom
Stem: Bontrager Comp, 31.8 mm, Blendr-compatible, 7 degrees, length 50mm (S), 60mm (M, ML), 70mm (L), 80mm (XL)
Handlebars: Bontrager Comp, aluminum, 31.8mm, 5mm rise, 720mm width (S, M) / Bontrager Rhythm Comp, aluminum, 31.8mm, 15mm rise, 750mm width (ML, L, XL)
Grips: Trek Line Comp, nylon screw clamp
Brakes: Shimano Hydraulic disc brake, MT4100 brake lever and MT410 brake caliper, Shimano RT54, Centerlock, 160 mm (front & rear)
Shift levers: SRAM Eagle 70
Rear derailleur: SRAM Eagle 70, 12-speed
Crankset: SRAM Eagle 70, T-Type, DUB, 32 Z., 55mm chainline, 170 mm crankarm length
Bottom bracket: SRAM DUB MTB Wide, 73 mm,, BSA thread
Cassette: SRAM Eagle XS-1270, T-Type, 10-52T, 12-speed
Chain: SRAM Eagle 70, T-Type, 12-speed
Front hub: Shimano TC500, aluminum, Center Lock disc mount, 110x15mm thru axle
Rear hub: Shimano TC500-HG
Rims: Bontrager Kovee, hollow chamber rim, tubeless ready, 28-hole, 23mm internal width, Presta valve
Tires: Maxxis Rekon Race, Tubeless-Ready, EXO-casing, foldable, 60 TPI, 29x2.40 inch
Saddle: Verse Short, CrMo stays, 145mm width
Seatpost: Bontrager Line Dropper, 100mm stroke (S, M), 150mm (ML, L), 170mm (XL), MaxFlow, internal cable routing, 31.6 mm, length 310mm (S, M), 410mm (ML, L), 450mm (XL)
Weight: 13.7 kg
Max. system weight: 136 kg
