The Shimano GRX FC-RX810 features optimum gearing for mixed terrain and riding styles and is designed for use with GRX Di2 components.

Color Black Rings 48/31 Number of Chainrings Double Crank Length (mm) 172.5 Crank Intended Use Gravel Drivetrain Speeds 11 Weight 722 BB Included No Pedal Spindle 9/16″ Spindle Interface Type Shimano Hollowtech II Chainring BCD 80 Chainline/Hub Compatibility 135/142 Road Disc Hubs > 415 mm Chainstay Defined Color Black Crank Length 172.5Mm Chainring Size 48/31T