Front and rear specific rims: more compliance up front, increased strength in the back 30mm ID, 35mm OD aluminum rim with Anvil Edge sidewalls to resist pinch flats Tubeless ready rims, tires mount easily without a compressor Asymmetric rims and same length spokes for nearly even left/right tension Vault hub end caps are easily replaced to fit virtually any axle standard 120point, 6x3-pawl system engages every 3 degrees International Standard 6bolt disc rotor mount Built with double butted straight pull spokes and alloy spoke nipples Choose SRAM XD or Shimano Micro Spline freehub Lifetime warranty, crashes included 1865g f/r set