The Shimano Deore XT M8000 bottom bracket has been updated with a new bearing and seal design. The new design features smaller ball bearings for less friction and better rotation, resulting in more efficiency. Improved seals keep mud and dirt out for a longer wear life, and longer intervals between servicing.Features: Small ball bearings for better rotation Better sealing keeps the elements out

Product Features

• Small ball bearings for better rotation
• Better sealing keeps the elements out