Shimano GRX FC-RX820 Chainset 40T - Single - 12-Speed - Hollowtech II - 175mm

Wide array of options delivers optimal gravel gearing for variety of riders.

The SHIMANO FC-RX820-1 crank 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, riders can choose closer gear steps or ultimate range.

• Optimal gearing for mixed-terrain riding
• 10-45T and 10-51T cassette options serve array of riding styles