Product Details

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 Hollowtech II (not included)
• Recommended Chain: HG 12-speed (e.g. CN-M8100)
• Weight: 170.0 mm w/42T: 656g

About Shimano
Established in Japan in 1921, Shimano is the worlds largest bicycle component manufacturer. Whether it be drive systems, brakes, pedals or shoes, Shimano stands for reliable quality and performance. From Road & Gravel to Mountain, Touring & Urban use, Mechanical or Electric.