The Shimano FC-RX610-2 offers a balanced ratio of weight savings and optimized efficiency for mixed terrain rides and racing. The gearing options meet the segmented demands of gravel cycling, maintaining the closer gear ratios necessary to keep your position in the field. The 2x12 crankset uses a 46-30T chainring combination and is available in crank arm lengths of 165, 170, 172.5, and 175 mm.