Shimano Ultegra FC-R8100 chainrings are constructed with high quality aluminum and are compatible with FC-R8100 and FC-8100-P 2x 12-speed cranksets.

• Asymmetric 110 BCD
• Compatible with HG 12-speed chains
• Chainring BCD: 110 Shimano Asymmetric
• Color: Black
• Defined Color List: Black
• Drivetrain Speeds: 12
• Material: Aluminum w/ Carbon Wrap
• Ring Position/Type: Outer
• Tooth Count: 52