Park Tool BBT-9 BB tool for Shimano Hollow Tech II BB

The BBT-9 is used to remove and install Shimano® Hollowtech II bottom brackets. One end of the BBT-9 securely engages the 16 notches of the bottom bracket cups, while the other end engages the 8 internal splines of the crank arm adjustment cap.

Also fits the Campagnolo Ultra-Torque bottom bracket cups.