Brake compatibility is stated in the column MFR#:;All wheels with free-wheel hubs are compatible for either Roller Brakes or Disc Brakes;Some wheels are compatible with Rim Brakes, but also for Disc Brakes, because the hub has a 6-bolt interface;Matching Front Wheels are available for some models via the Spec Sheets on the Tech Site;Normal BionX hubs and BionX SL (lighter type) hubs are backwards compatible;Does not include the skewer, reflector, rim strip, valve or owner’s manual;