The BBT-79.3 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