Used this bike a few weekends ago to get 4th in a WORS age group mountain bike race. Trek: "Simply put, Trek's all-carbon Superfly is a XC rocket. The Superfly's OCLV carbon frame is incredibly light and efficient and features Gary Fisher's G2 Geometry with a custom, 100mm travel G2 specific RockShox fork. For powering the climbs, controlling the descents and dismantling the competition, the Superfly is dialed. Racing or just cruising around, the geometry is just perfect for full-on trail riding, confident, capable and lively. Combine that with the benefits of 29-inch wheels and the product is a super-quick handling, roll-over-anything machine. The parts are just as able. The Superfly is adorned with Bontrager wheels, a precision-shifting 3x10 Shimano drivetrain, ultra-powerful Shimano discs and a light Bonty parts package. Ride it and believe."