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- The BBT-79 is a precision machined aluminium tool for the installation and removal of 12-notch external bearing bottom brackets with an outside diameter of 46mm
- The BBT-79 fits Sram DUB. Race Face Cinch, Zipp Vuma, Rotor BSA30, Hawk Racing BB3086, and others
- 3/8" inch ratchet/torque wrench drive compatible
- Made in the USA and covered by Park Tool's legendary limited lifetime warranty
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