evo.com | Shimano Crank Sets > Made for aggressive trail riding, there are very few days on the bike that a Shimano XT FC-M8100 12-Speed Crank Arms can't handle easily. These carry the XT badge into 12-speed territory with superior chain retention, light weight, and all-mountain durability, on top of that Shimano build quality. Hollowtech II Balanced between stiffness, strength, weight, and performance, the concept of HOLLOWTECH II technology is focused on producing a superior crankset which will maximize a rider's power transfer. The rigidity of the crankset ensures pedaling efficiency while its weight, a key element of the crankset, you want light, aids in cycling longer distances over which the rider needs to pedal more. 52mm Chainline Special Gear Teeth Profile Designed for MTB Riding 172mm Q-Factor Direct Mount Chainring | Shimano XT FC-M8100 12-Speed Crank Arms 2022 - 175mm