This is full-suspension performance at the weight of a hardtail;It’s the choice of the pros of Trek Factory Racing XC, and for good reason: it’s the fastest XC bike we make;TwistLoc simultaneously locks out front and rear shocks for climbs and sprints with the simple Grip Shift-like motion;Wider Kovee Pro 30 wheels provide better tyre support so you can run lower pressure and get more traction;