Park Tool BBT-RS Bottom Bracket Tool

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. Solution: the 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.

• Compatible with the following bottom bracket styles:
- Threaded cup
- Thread-together
- Cartridge
- Cup-and-cone
• Compatible with the following 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-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)