The SHIMANO FC-RX610-1 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 38T or 40T chainring. riders can choose closer gear steps or ultimate range depending on personal need. The FC-RX610-1 comes in 165. 170. 172.5. and 175 mm crank arm lengths. providing an additional level of customization.
