Shimano | Grx Fc-Rx820 2X Crankset 172.5Mm, 48-31T | Aluminum

Shimano GRX FC-RX820 2x Crankset Optimized Efficiency The crank is what allows riders to send pedaling power to the rear wheel. With an upgraded crank, you'll have more of your power transferred to the rear wheel. The Shimano GRX FC-RX820 2x Crankset balances weight savings, optimized efficiency, and an array of gearing options that cater to the segmented demands of mixed-terrain riding. The double chainring gearing caters to the segmented demands of gravel cycling, maintaining the tighter gear steps needed to maintain your position in the bunch. Features Balances weight savings and has optimized efficiency Pairs well with smaller cassettes for tighter gear steps Comes in 165, 170, 172. 5, and 175mm SPECIFICATIONSSpeeds2x12BB Compatibility68mm, 24mm Spindle Chain Ring31/48TCrank Arm Length165, 170, 172. 5, 175mm BB Spindle Interface24mm Chainring Material Aluminum Bolt Center Diameter (BCD)110/80mm Crank Arm Material Aluminum Chainline47mm Bottom Bracket Included No, SM-BB72/SM-BBR60 Recommended Intended Use Gravel Weight710g | Shimano | Grx Fc-Rx820 2X Crankset 172. 5Mm, 48-31T | Aluminum