SHIMANO GRX FC-RX820-2 Crankset Chainring
Replacement chainrings for Shimano GRX FC-RX820-2 cranksets
Material: Anodized aluminum
Chainring Bolt Circle Diameter: 80mm BCD Shimano Asymmetric (inner), 110mm BCD Shimano Asymmetric
Tooth Count: 31t inner; 80t outer
Drivetrain Speeds: 12
Original Shimano parts guarantee that all components work perfectly for optimum performance and maximum safety and longevity.