The Shimano FC-RX820 crank balances weight savings optimized efficiency and an array of gearing options that cater to the segmented demands of mixed-terrain riding.

Color Black Rings 40 Number of Chainrings Single Crank Length (mm) 170 Crank Intended Use Gravel Drivetrain Speeds 12 Weight 644 BB Included No Pedal Spindle 9/16″ Spindle Interface Type Shimano Hollowtech II Chainring BCD 110 Shimano Asymmetric Chainline/Hub Compatibility 135/142 Road Disc Hubs > 415 mm Chainstay Defined Color Black Crank Length 170Mm Chainring Configuration 40T Single