Park Tool BBT-179
The Park Tool BBT-179 is a 12-notch socket for 45–47 mm external bottom bracket cups like SRAM DUB, Race Face Cinch, and Rotor BSA30 with 3/8-inch drive. It suits riders on mechanical advantage tools for stubborn BB removal.
- 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
- 50.04 mm (1.97") outer diameter at point of engagement
- Internal clearance: 42 mm (1.654") depth (from tool face) x 30.44 mm (1.198") diameter
Pairs well with
Park Tool BBT-179
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