Shimano | Grx Fc-Rx820 1X Crankset 175Mm, 40T | Aluminum

Shimano GRX FC-RX820 1x 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 1x Crankset balances weight savings, optimized efficiency, and an array of gearing options that cater to the segmented demands of mixed-terrain riding. By pairing a 10-45T or 10-51T cassette with 40T and 42T chainrings, you can choose closer gear steps for ultimate range. Features Balances weight savings and has optimized efficiency Pairs well with smaller cassettes for tighter gear steps Comes in 170, 172. 5, and 175mm SPECIFICATIONSSpeeds1x12BB Compatibility68mm, 24mm Spindle Chain Ring42T, 40TCrank Arm Length170, 172. 5, 175mm BB Spindle Interface24mm Chainring Material Aluminum Bolt Center Diameter (BCD)110mm Crank Arm Material Aluminum Chainline49. 7mm Bottom Bracket Included No, SM-BB72/SM-BBR60 Recommended Intended Use Gravel Weight644g (40T), 656g (42T) | Shimano | Grx Fc-Rx820 1X Crankset 175Mm, 40T | Aluminum