Race Face Turbine 29" Rear Wheel 12x148 Boost MS BlackFront 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 120 point, 6x3 pawl system engages every 3 degrees International Standard 6 bolt