World Cup-efficient and made to fly, Trek's Procaliber is a race-ready ride at home anywhere XC-speed is paramount. It boasts a full-carbon frame with Trek's IsoSpeed decoupler that basically makes this brutally fast rig not so brutal on you, since more comfort means more performance. Leading the way, RockShox's Reba RL fork handles anything the trail throws at you. Ditto for the tubeless Bontrager Mustang Elite wheels that accelerate quickly at the push of the SRAM GX 1x11 drivetrain. Throw in Shimano Deore disc brakes and solid Bontrager stem, bars, and seatpost, and you're dialed.