The new FC-RX610-2 crank balances weight and efficiency for mixed-terrain riding. Gearing options cater for the specific demands of gravel riding and to maintain tighter gear steps for maintaining pedaling rhythm. – GRX 12 speed, double crankset. – 30-46T: Shimano’s widest range gravel-oriented double crank. – Tighter gear steps than 1X drivetrains make it easier to maintain pedaling rhythm – Bottom Bracket: Not included – BB-RS500/BB-RS500-PB. – Chainline: 46.9mm
