Park Tool, BBT-RS, Bottom Bracket Tool Retaining System

Bottom brackets have some of the highest torque specs of any component found on a bicycle. Despite this, some bottom bracket cups feature tool fittings that allow mere millimeters of engagement, which can be a problem when attempting removal or installation.

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.

Product details

Compatible with the following bottom bracket styles: threaded cup, thread-together, cartridge, cup-and-cone
Compatible with Park Tool bottom bracket tools: 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-79.3
Also compatible with any bottom bracket tool with a handle, any bottom bracket tool with external wrench flats
M8 threaded rod and double-sided adapter nut with M12 and M15 threads, thread directly into any compatible cartridge bottom bracket
Washer diameter: 57mm (2.25")
Rod length: 175mm (6.9")
Rod threading: M8 x 1.0
Adapter nut threading: M12 x 1.0 & M15 x 1.0

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Park Tool, BBT-RS, Bottom Bracket Tool Retaining System

The right tool for the job

Product details

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