SHIMANO XTR FC-M9000 Crankset 11 Speed Chainrings
The new 3D composite chain ring’s teeth composition is optimized for each chain wheel load out (1×11, 2×11, and 3×11) with steel driving gear teeth and aluminum support gears
Cassette Compatibility: 11 Speed
Bolt Circle Diameter: 64mm/96mm BCD (4-bolt XTR specific asymmetrical)
Original Shimano parts guarantee that all components work perfectly for optimum performance and maximum safety and longevity.