About Park Tool BBT-9 Bottom Bracket ToolThe BBT-9 is used to remove and install external bearing crankset bottom brackets. One end of the BBT-9 securely engages the 16 notches of bottom bracket cups. The other end of the tool engages the 8 internal splines of the crank arm adjustment cap on Shimano® Hollowtech II® systems. The BBT-9 fits cups and lockrings with 16 external notches and an outside diameter of approximately 44mm. Features16-notch 44mm OD cups FitsShimano® BB80, BB5700, XT® BB70, BB51, and previous external bearing threaded cups External threaded types for Campagnolo®, Chris King®, FSA® MegaExo®, SRAM®/Truvativ® GXP®, Race Face® X-type, Surly®, Wheels®, Fulcrum®, Hope™ (non-BSA30) and others 16-notch rotor disc lockrings 16-notch Bafang® BBSH, BBS02 Mid Drive motor lockrings About Park ToolPark Tool are the world's largest bicycle tool manufacturer. Located in St. Paul Minnesota they have been designing and manufacturing bicycle specific tools since 1963. Their dedication to quality and innovation have gained them the reputation for producing the best bicycle tools in the world.
