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 120mm RockShox fork seal the deal with all the gears and rock-smoothing comfort you need. You get modern geometry and 120mm of front suspension that keeps you in the attack on climbs and crushing confidently on descents It balances the accessible price of an alloy hardtail with the performance of its carbon cohorts The 12-speed one-by drivetrain gives you plenty of gears for hammering up climbs with the simplicity of a single shifter Its Tubeless Ready 29in wheels keep rolling resistance down while helping fight flats Internal cable routing keeps your ride quiet, reduces maintenance, and looks sleek A better way to produce aluminumStarting in 2024, we began removing high-emission aluminum from our manufacturing and replacing it with low-emission aluminum made with renewable energy. By October 2025, nearly every alloy bike we make - this one included - had made the switch, driving a major drop in our footprint.Shimano DeoreShimano Deore brings even more adventure with a wider range of gear choices for the steep stuff, the fast stuff, and the fun. With smooth riding, improved chain stability, and sharp shifting, Deore heightens your mountain biking confidence and control so you can focus on the trail and enjoy the ride.Upgrade your pedals and love your bike morePedals are two of the five touchpoints that connect you with your bike, and even though this bike comes with a pair, upgrading to pedals that boost control and grip will greatly improve your ride. See the pedal guide and find the best pedals for your riding style. We recommend flat pedals for simple versatility. Frame Alpha Platinum Aluminum, tapered head tube, internal routing, BSA 73, hidden rack and kickstand mounts, UDH, Boost148, 12mm thru axle Fork RockShox Judy Silver, Solo Air spring, TurnKey lockout, tapered steerer, 42mm offset, Boost110, 15mm Maxle Stealth, 120mm travel Tire Bontrager Sainte-Anne Pro XR, Tubeless Ready, dual compound, aramid bead, 60 tpi, 29x2.20'' Tire Part Bontrager TLR sealant, 6oz Hub Front Shimano TC500 alloy, centerlock, 110x15mm thru axle Hub Rear Shimano TC500 alloy, centerlock, 148x12mm thru axle Rim Bontrager Kovee, double-wall, Tubeless Ready, 28-hole, 23mm width, Presta valve Rim Strip Bontrager TLR Skewer Rear Bontrager Switch thru axle, removable lever Shifter Shimano Deore M6100, 12 speed Rear Derailleur Shimano XT M8100, long cage Crank Shimano MT512, 30T ring, 55mm chainline, 170mm length Bottom Bracket Shimano BB-MT501 BSA Cassette Shimano Deore M6100, 10-51, 12 speed Chain Shimano Deore M6100, 12 speed Brake Rotor Shimano RT10, centerlock, 160mm Pedal VP-536 nylon platform Saddle Verse Short, steel rails, 145mm width Seatpost Bontrager Line Dropper, 100mm travel, MaxFlow, internal routing, 31.6mm, 310mm length Seat Collar Bolt-on, 36.4mm Handlebar Bontrager Comp, alloy, 31.8mm, 5mm rise, 720mm width Stem Bontrager Comp, 31.8mm, Blendr compatible, 7 degree, 50mm length Headset Semi-integrated, loose ball bearing, 1-1/8'' top, 1.5'' bottom Grips Trek Line Comp, nylon lock-on Geometry Chart B B Drop 6.4 B B Height 30.9 Chainstay Length 43 Eff Seat Tube Angle 74.3° Eff Top Tube 57.7 Frame Reach 40.5 Frame Size Letter S Frame Stack 61.4 Head Angle 67.0° Head Tube Length 9 Offset 4.3 Seat Tube 39 Seat Tube Angle 71.0° Standover 74.7 Wheelbase 111 Wheel Size 29" Color SATIN TREK BLACK/LITHIUM GREY