The Shimano Deore XT M8000 Hollowtech II Crank Arms offer numerous different styles for riding your bike. It uses durable teeth on the chainwheel, and the driving rigidity reduces vibration. The chainring teeth are made from 3D composite, and it features steel driving gear teeth with support gears made from aluminum. The device maintains a steady rhythm and provides a low-shifting gap, thanks to the loose ratio gear combination. It offers enhanced sealing, optimal rotation, and maximum chain retention.