Park Tool Bottom Bracket Tool Retaining System

Used in conjunction with nearly any Park Tool bottom bracket tool, the BBT-RS uses a spring-based tension system to apply consistent, adjustable pressure to the tool, ensuring full engagement with the tool fitting and preventing slippage.

The BBT-RS can be configured for use with the vast majority of threaded and thread-together bottom bracket standards. The BBT-RS features an M8 threaded rod and a double-sided adapter nut with M12 and M15 threads, allowing it to thread directly into any compatible cartridge bottom bracket. The M15 adapter can also be used with any of Park Tool′s current models of aluminum bottom bracket tools, all of which feature integrated threading for use with the BBT-RS.

Compatible with the following bottom bracket styles:
Threaded cup
Thread-together
Cartridge
Cup-and-cone
Compatible with the following bottom bracket tools:
The following models of Park Tool socket-style aluminum bottom bracket tool:
BBT-27.3
BBT-35-12
BBT-35-36
BBT-47-12
BBT-47-16
BBT-49.3
BBT-59.3
BBT-69.3
BBT-69.4
BBT-79.3
Wrench-style bottom bracket tools with a handle (e.g. Park Tool BBT-9, BBT-29, HCW-4)
Bottom bracket tools with external wrench flats (e.g. Park Tool BBT-19.2, BBT-22)
Rod length: 175 mm (6.9″)
Rod threading: M8 x 1.0
Adapter nut threading: M12 x 1.0 M15 x 1.0
Speed nut diameter: 38 mm (1.5″)
Washer diameter: 57 mm (2.25″)