The Shimano R9100 series crankset achieves the ultimate in optimal power transfer. It does this through a reinforced chainring on its unique asymmetrical four-arm spider construction. - Chainring BCD: 110 Shimano Asymmetric - Drivetrain Speeds: 11 - Material: Aluminum - Ring Position/Type: Inner

Shimano SLX M660 9-Speed chainrings get your drivetrain back to optimal operation.

Original equipment on SRAM and Truvativ cranks, these chainrings also work well with other drivetrains.

Shimano Ultegra R8000 Series Chainrings are designed for use with Shimano's 11-speed Ultegra crankset.