With Shimano's new M8000 crankset you can ride anywhere with confidence and performance.
Shimano’s proven Hollowtech ll technology applied to the M8000 crank arms improves stiffness and weight savings. The asymmetrical bolt pattern strategically places the strength spots where the most pedal force is exerted, providing more stability and trail confidence.
The available 8000 chainrings have more durable teeth than ever before. New 3D composite chainring teeth composition is optimized for each chainring load with steel driving gear teeth and aluminium support gears. Improved rigidity. Looser ratio gear combinations for minimum shifting gaps and maintaining rhythm. Enhanced chain retention system. Better sealing and better rotation.
Basically its all new and super impressive.