The Avid Juicy Carbon brakes come in sizes from 160mm to 203mm, intended for use in Cross Country, All Mountain, Freeride or Downhill. The carbon fiber makes it strong and light. Finish is Flash Silver. Rotor Sizes: 160mm,185mm,203mm. Rotor Design: New G2 Clean Sweep. Mounts:Front - Fits both I.S. and Post mount. Rear - Fits I.S. only Weight: 411g. The fact that it's a Juicy makes it powerful, comfortable and a snap to install.