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Park Tool BBT-RS Bottom Bracket Tool Retaining System

Park Tool / Bike Tools & Maintenance

Park Tool BBT-RS Bottom Bracket Tool Retaining System

This unique tool applies consistent pressure to your bottom bracket tool to allow for full engagement to prevent any slippage.

$47.95

Ship to store · free pickup, usually ready in 4–7 business days

Free pickup at any of our four stores. Questions? We're happy to help.

About this product

The details.

The right tool for the job

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 installati

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