The Shimano FC-RX610-1 crankset offers a balanced combination of weight savings, optimized efficiency, and a range of gearing options to meet the diverse demands of riding in mixed terrain. By pairing a 10-45T or 10-51T cassette with a 38T or 40T chainring, riders can choose between closer gears or the ultimate range based on their personal needs. The FC-RX610-1 is available in crank arm lengths of 165, 170, 172.5, and 175 mm, providing an additional opportunity for customization.