Description
ParkTool BBT-79 Bottom Bracket Tool 12-Notch 46mm OD
ParkTool BBT-79 is a precision CNC-machined aluminium tool for installing and removing select threaded bottom brackets with 12-notch fittings. It uses a 3/8″ drive, so you can pair it with a ratchet or torque wrench for controlled and accurate service. As a result, it gives mechanics and home users a dependable solution for modern threaded bottom bracket work.
Fit and compatibility
BBT-79 fits 12-notch threaded bottom bracket tool fittings with a major diameter of 45–47 mm and a minor diameter of 44 mm. It is compatible with SRAM BSA DUB, Race Face Cinch, Rotor BSA30, Zipp Vuma, Hawk Racing BB3086, and more. Therefore, it covers many common threaded bottom bracket systems used on road, gravel, and mountain bikes.
Build and handling
ParkTool manufactures the BBT-79 in-house and anodizes it for easy identification. The aluminium construction keeps the tool light, while still giving it the strength needed for workshop use. In addition, the 3/8″ drive format helps you apply secure, consistent force during installation and removal.
Use cases
This tool suits anyone who needs a reliable way to service 12-notch threaded bottom brackets. It offers a precise fit that helps reduce slipping and lowers the risk of damaging the part. For regular workshop work, that makes it a clean and professional option.
