Park Tool bottom bracket tools for installation and removal of 16 notch bottom brackets.

• Fits 16-notch tool fittings with a major diameter (outside of notches) of 44–45 mm and a minor diameter (inside of notches) of 42.7 mm, including:
• Shimano BB80, BB5700, XT BB70, BB51, and previous external bearing threaded bottom bracket cups
• Threaded bottom bracket cups from Campagnolo®, Chris King, FSA MegaExo, Hope, SRAM/Truvativ GXP, Race Face X-type, Surly, Wheels, Fulcrum, and others
• Center lock disc brake rotor lockrings
• Bafang BBSH, BBS02 mid-drive motor lockrings