– Chainline: 46.9mm
– Bottom Bracket: Not included – SM-BBR60 / SM-BB72
– Tighter gear steps than 1X drivetrains make it easier to maintain pedaling rhythm
– 31-48T: Shimano’s widest range gravel-oriented double crank.
– GRX 12 speed, hollow arm double crankset.
The new FC-RX820-2 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.
The Shimano FC-RX820 crank balances weight savings, optimized efficiency and an array of gearing options that cater to the segmented demands of mixed-terrain riding.
– Gravel-optimized 48-31t gear combination ratios preserve riding rhythm on rough surfaces
– The 17t range covers an array of riding conditions
– Smaller gear steps for cadence control on mixed-terrain riding
– Hollowtech II crank arms provide strength and stiffness with the benefit of weight savings
– Compatible with HG 12-speed chains
– 47mm chainline
– 151mm Q-factor
