Shimano Bottom Bracket Parts, BSA BB-MT800, Right & Left Adapter shimano


XT has gone 11-speed, and along with the number of gears, the bottom brackets are now also inspired by XTR. They have a decreased the bearing size to increase rolling efficiency and reduce weight. They are also better sealed to reject whatever muck the trails conjure up and throw at them.

For Shimano 24mm MTB cranks • Threaded • High quality sealed bearings • 68/73 mm shell width • HOLLOWTECH II Technology