The BBT-79.3 is a precision-engineered CNC-machined aluminum tool designed for the seamless installation and removal of select threaded bottom brackets. It is compatible with bottom brackets featuring 12-notch tool fittings, such as SRAM® BSA DUB®, Race Face® Cinch®, Rotor® BSA30, and others. Crafted in-house by Park Tool, this tool is anodized for easy identification and boasts a ratchet/torque wrench-compatible 3/8" drive for enhanced versatility and ease of use.

One of the standout features of the BBT-79.3 is its integration with the Park Tool BBT-RS Bottom Bracket Tool Retaining System (available separately). This innovative system employs adjustable spring-based tension to apply consistent pressure to the tool, ensuring full engagement with the bottom bracket fitting and minimizing the risk of slippage during use. With its superior construction and compatibility, the BBT-79.3 is a reliable and indispensable tool for any cyclist or bike mechanic.