ShimanoGRX FC-RX610-1 Crankset

The new FC-RX610-1 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, 1X crankset.
– Narrow-wide 38T or 40T chainring.
– Gravel specific gearing ratios with 1X simplicity and wide-range gearing.
– Bottom Bracket: Not included – BB-RS500/BB-RS500-PB.
– Chainline: 50.1mm.