GRX FC-RX820 12-Speed Single Chainset

Shimano GRX FC-RX820 12-Speed Single Chainset

The GRX FC-RX820 12-Speed Single Chainset 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 chainring, riders can choose closer gear steps or ultimate range. The FC-RX820-1 comes in 170, 172.5, and 175mm crank arm lengths, adding an additional level of customization.