Park Tool Bottom Bracket Tool for Shimano Hollowtech II Cups

The BBT9 is used to remove and install external bearing crankset bottom brackets. One end of the BBT9 securely engages the 16 notches of the bottom bracket cups. The other end of the tool engages the 8 internal splines of the crank arm adjustment cap. The BBT9 fits cups and lockrings with 16 external notches and an outside diameter of approximately 44mm. The BBT9 works with many external bearing crankset bottom brackets, including: Shimano, Hollowtech II, Campagnolo, UltaTorque and Power Torque, Race Face, FSA, SRAM, Truvativ, Chris King, Phil Wood outboard bearing The BBT9 also fits rotor disc lockrings which use 16 external notches.