With the ever growing trend towards disc brakes for both road and cross the fulcrum racing quattro family sees an additional model that is perfectly compatible the racing quattro carbon comes in a disc brake format and thanks to its multiple adapters it is compatible with any style fork or axle available in either afs or 6 bolt hub standard the racing quattro carbon disc is a well rounded versatile and race ready wheelset perfect for upgrading your ride no matter what standard you choose r