Shimano's GRX 810 crank beatifuly balances weight and efficiency for mixed-terrain gravel riding. Gearing options cater for the specific demands of gravel tracks and to maintain tighter gear steps for maintaining pedaling cadence. Features Optimum gearing for mixed terrains and riding styles. Gravel gear ratios preserve riding rhythm over rough surfaces with wider tyres. Single Ring Sizes: 40T / 42T. Specification Material: Alloy. Use: Gravel, Road. Chainline: 50.1mm. Arm: 4-arm. BCD: 110mm. Q-factor: 151mm.
