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. Product Specifics Color: Black Rings: 48/31 Number of Chainrings: Double Crank Length (mm): 175 Crank Intended Use: Gravel Drivetrain Speeds: 12 Weight: 710 BB Included: No Pedal Spindle: 9/16" Spindle Interface Type: Shimano Hollowtech II Chainring BCD: 110 Shimano Asymmetric .
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