Park Tool BBT-9 HollowTech Bottom Bracket Tool
The BBT-9 is used to remove and install Shimano Hollowtech II, Campagnolo Ulta-Torque and Power Torque, Race Face, FSA, SRAM,Truvativ, Chris King, Phil Wood outboard bearing, Hawk-Racing and many other external bearing crankset bottom brackets. One end of the BBT-9 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 to adjust bearing pre-load on Shimano cranks/bottom brackets. The BBT-9 also fits the rotor disc lockrings using 16 external notches.