Shimano Ultegra R8000 Series Chainrings are designed for use with Shimano's 11-speed Ultegra crankset. For 2x11 drivetrain setups Product Specifics Tooth Count: 46 Ring Position/Type: Outer Drivetrain Speeds: 11 Chainring BCD: 110 Shimano Asymmetric Color: Black Defined Color: Black Material: Aluminum .
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