Shimano GRX FC-RX820-1 Hollowtech II 12V Crankset – Gravel Performance and Maximum Efficiency on Mixed Terrain

The Shimano GRX FC-RX820-1 is a new-generation single chainring crankset designed for gravel and adventure cyclists seeking the best balance of lightness, stiffness, and optimized gear ratios. Thanks to Hollowtech II technology, specific chainring choices, and compatibility with wide-range cassettes, this crankset offers superior efficiency and smooth pedaling on any mixed terrain.

Performance designed for gravel

• The crank arm SHIMANO FC-RX820-1 offers a perfect mix of low weight and optimized efficiency, ideal for tackling long distances and variable routes.

• The combination with cassettes 10-45D or 10-51D allows choosing between closer and progressive ratios or a wider range for challenging climbs and off-road adventures.

• Available with 40T or 42T chainrings, it allows a customized setup based on riding style and terrain difficulty.

• The crank arms are offered in lengths of 170 mm, 172.5 mm, and 175 mm, ensuring adaptability and comfort for every cyclist.

Optimal gear ratios for every terrain

• Compatible cassette options: 10-45T and 10-51T. Perfect for various disciplines: gravel racing, bikepacking, mixed adventures, white roads, and technical routes.

• Available chainrings: 40T and 42T. Choose the ideal chainring for your power, cadence, and type of route.

Why choose the Shimano GRX FC-RX820-1

This crankset is the ideal solution for cyclists who demand:

• smooth and progressive gear shifts

• a transmission optimized for variable terrains

• lightness and stiffness guaranteed by Hollowtech II technology

• freedom to configure your own gravel or adventure setup