Park Tool BBT-79.3 Bottom Bracket Socket

A precision CNC-machined aluminum tool for the installation and removal of select threaded bottom brackets with 12-notch tool fittings, including SRAM® BSA DUB®, Race Face® Cinch®, Rotor® BSA30, and others.

• Fits 12-notch threaded bottom bracket tool fittings with a major diameter (outside of notches) of 45–47 mm and a minor diameter (inside of notches) of 44 mm, including:
- SRAM® BSA DUB®
- Race Face® Cinch®
- Rotor® BSA30
- Zipp® Vuma™
- Hawk Racing™ BB3086™
and more
- 3/8" drive fitting
- Integrated threads for full compatibility with the Park Tool BBT-RS Bottom Bracket Tool Retaining System (sold separately)