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 slippageFeatures 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 bracketThe 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-RSCan be configured for use with the vast majority of threaded and thread-together bottom bracket standardsFor full compatibility see Park Tool or contant your local salesmenUPC/EAN/GTIN: 763477001603