The Shimano GRX FC-RX820-1 is a lightweight and very efficient 1x12-speed crank for gravel use of all kinds. The single chainring set-up is suitable for all those who like things to be uncomplicated and are looking for an all-purpose crank for exploring, racing, high-speed section and mountain crossings. In general, this solution is affected less by dirt and mud. In combination with an appropriate cassette, it offers you a wide range of ratios for any terrain. Featuring the proven Hollowtech II design for highly efficient power transmission and outstanding stiffness with the lowest possible weight.
1x12-speed aluminium crank for gravel use
Developed for mixed terrain
Wide range of options for the optimal gravel gear ratio and different riding styles
Less susceptible to being clogged up by mud thanks to only one chainring
Hollowtech II: Hollow crank arms provide balance between stiffness, stability, weight and rotational efficiency
Anodised crank arms
Chainring lacquered, anodised teeth
Aluminium chainring bolts
42T chainring
Q-Factor: 151 mm
Chainline: 49.7 mm
Axle Diameter: 24 mm
Chainring Mount: 110 mm bolt circle, 4-arm asymmetrical
Recommended Bottom Bracket: SM-BBR60 or SM-BB72-41B Press Fit
Specifications
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