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.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 to install any of Park Tool's nine aluminum bottom bracket tools, all of which feature integrated threading for use with the BBT-RS.
- Washer diameter: 57 mm (2.25")
- Rod length: 175 mm (6.9")
- Rod threading: M8 x 1.0
- Adapter nut threading: M12 x 1.0 & M15 x 1.0
Please Note: This product is usually available for shipment within 5-7 business days. Contact for in-store availability, not all items are available for immediate pickup. If we are unable to meet these time frames due the rapid changes in revolving inventory you will be contacted via email. We do not partial ship orders, the delivery time of your order is determined by the item on your order with the longest lead time. If your order is time sensitive we encourage you to contact us for up to the minute product availability and ship times to verify that we can accommodate your needs. Refer to our Shipping Terms for more information.
