Shimano BB86 Bottom Bracket SM-BB91-41B
Shimano's BB86 bottom bracket will make all BB86 specific frames compatible with Shimano 24mm spindle Hollowtech II cranksets. Simply press in the bottom bracket with a quality headset press, the Shimano BB86 press fit tool (not included) or at your local shop and you're ready to install your crankset.
In case you were wondering, BB86 was introduced by Shimano as their internal bottom bracket standard. It requires a frame that has a threadless bottom bracket shell width of 86.5mm with an internal diameter of 41mm.
- Easy installation
- Quality bearings
- For use with Shimano Hollowtech II cranksets
- 70 grams