Shimano XT FC M8000 B1 Boost Crank Arms

The Shimano XT M8000 B1 Crankset, forged with the Hollowtech II construction, is a lightweight, strong crankset that will handle the demands of all of your mountain bike builds. Featuring aluminum arms and steel spindle and driving gear teeth, you'll have the confidence to hammer down when you need to, and the Dynamic Chain Engagement tooth profile creates better chain retention.