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 48/31 Number of Chainrings Double Crank Length (mm) 172.5 Crank Intended Use Gravel Drivetrain Speeds 12 Weight 710 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 Configuration 48/31T Double