Shimano GRX FC-RX820 44T Single Chainset | 12-Speed Gravel Crankset with Hollowtech II, 170mm
The Shimano GRX FC-RX820 Chainset 44T Single 12-Speed Hollowtech II 170mm is a high-performance gravel and cyclocross chainset designed for riders who need reliable power transfer, smooth drivetrain performance and gearing built for mixed terrain. As part of Shimano’s dedicated GRX gravel groupset, the FC-RX820 combines rugged durability with gravel-specific performance for racing, bikepacking, adventure riding and all-road cycling.
- Shimano GRX FC-RX820 chainset
- Designed for gravel and cyclocross riding
- 44T single chainring for 1x drivetrain setups
- Compatible with 12-speed Shimano GRX drivetrains
- Built for mixed terrain, adventure riding and all-road cycling
- Shimano Hollowtech II crank technology
- Designed for Hollowtech II bottom bracket cups
- Compatible with 12-speed Hyperglide+ chains
- Anodised aluminium crank arms for durability
- Lightweight aluminium chainring
- 4-arm design with 110mm BCD
- 170mm crank arm length
- Grey finish
Designed for 1x12-speed gravel drivetrains, this Shimano GRX chainset features a 44 tooth single chainring, giving riders a simple, efficient and dependable setup for varied riding conditions. The single-ring design helps reduce drivetrain complexity while maintaining a wide, usable gear range when paired with a compatible 12-speed cassette.
Built with Shimano’s proven Hollowtech II crank technology, the FC-RX820 delivers an excellent balance of stiffness, strength and low weight. The anodised aluminium crank arms provide long-lasting durability, while the lightweight aluminium chainring supports efficient pedalling across rough roads, gravel tracks and cyclocross courses.
Compatible with Shimano 12-speed Hyperglide+ chains and designed to work with Hollowtech II bottom bracket cups, the GRX FC-RX820 is a dependable upgrade or replacement chainset for modern gravel bikes. With a 170mm crank arm length, 110mm BCD and 4-arm construction, it offers Shimano’s trusted fit, function and performance.