Shimano FC-RX610-1 GRX Crankset 12 Speed 38T 172.5mmThe Shimano FC-RX610-1 GRX 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 38T or 40T chainring, riders can choose closer gear steps or ultimate range depending on personal need. Compatible with HG 12-speed chains. The chainline is 49.7mm and the Q-factor is 151mm. Does not include a Bottom Bracket. Weighs 812g. The FC-RX610-1 comes in 165, 170, 172.5, and 175 mm crank arm lengths and with 38t or 40t, providing additional levels of customization.192790639642
