For mounting and dismounting Shimano XTR, Saint, Deore XT, Hone, Deore LX, DURA-ACE 10-speed, ULTEGRA, and 105 (2006 models) bearing cups Compatible with Campagnolo Ultra Torque, Truvativ Giga X-Pipe, RaceFace X-type, FSA Megaexo as well as Stronglight Pulsion Actic Link bottom brackets Made of cold-forged and hardened steel