Trek Procaliber 6 2025|S (29″)|M (29″)|ML (29″)|L (29″)|XL (29″)|Satin Trek Black/Lithium Grey|Viper Red/Crimson|Lavender Haze

Description

The Procaliber 6 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 drivetrain and 120 mm RockShox fork seal the deal with all the gears and rock-smoothing comfort you need.

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.

Why you’ll love it

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

Specifications

*spec applies to all sizes unless otherwise noted

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 Max compatible fork travel 130 mm (540 mm axle-to-crown)

Wheels

Hub front Bontrager alloy, sealed bearing, alloy axle, 6-bolt, Boost110, 15 mm thru axle Hub rear Shimano TC500 alloy, CentreLock, 148×12 mm thru axle Rim Bontrager Kovee, double-wall, Tubeless-Ready, 28-hole, 23 mm width, Presta valve Tyre Bontrager Sainte-Anne Pro XR, Tubeless Ready, dual compound, aramid bead, 60 tpi, 29×2.20″ Tyre part Bontrager TLR sealant, 180 ml/6 oz Rim strip Bontrager TLR Max tyre size Frame: 29×2.40″, Fork: See manufacturer

Drivetrain

Shifter Shimano Deore M6100, 12-speed Rear derailleur Shimano XT M8100, long cage *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 Cassette Shimano Deore M6100, 10-51, 12-speed Chain Shimano Deore M6100, 12-speed Pedal VP-536 nylon platform Max. chainring size 1x: 34T (55 mm chain line), min 30T (52 mm chain line)

Components

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 *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 Grips Bontrager XR Trail Comp, nylon lock-on *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 Head set Semi-integrated, loose ball bearing, 1-1/8″ top, 1.5″ bottom Brake Shimano MT200 hydraulic disc *Brake rotor Size:S, M, M/L, L, XL
Shimano RT10, CenterLock, 160 mm Size:L, XL
Shimano RT10, CenterLock, 180 mm Brake Set Shimano MT200 hydraulic disc Rotor size Max brake rotor sizes Frame: 180 mm, Fork: see fork manufacturer

Weight

Weight limit This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 136 kg (300 lb).