The BBT-30.3 Bottom Bracket Bearing Tool Set is designed for installation and removal of the bearings used in BB30, PressFit 30 (PF30), 386EVO, and BBright™ bottom bracket systems.
Featuring four titanium cogs, the Dura-Ace 7900 cassette offers superior shifting quality by creating a more rigid aluminum carrier unit along with a re-engineered tooth profile.