- 16 notch 41mm OD cups
- Fits Shimano® BBR60 (Ultegra® 11-speed 6800 series), Shimano® MT-800
Precision CNC machined aluminum tool for the installation and removal of 16-notch external bearing bottom brackets. Featuring updated tooth profiles to optimize the fit between the tool and high performance BB parts. Anodized and laser engraved for easy identification and featuring a ratchet/torque wrench compatible 3/8″ drive.