The Park Tool BBT-18C is a heavy duty, investment cast tool for installing and removing all Shimano, SRAM, and ISIS Drive eight-notch bottom bracket cups. This tool also includes 36mm wrench flats for ease of use.
- Shimano® Octalink® drive-side bottom bracket cups with external notches
- ISIS Drive bottom bracket cups including Truvativ® and Bontrager®
- Front chainring lockring for Bosch® Gen 3 and Gen 4 e-bike systems
- Front chainring lockring for Specialized® Levo Brose e-bike systems
