Shimano GRX FC-RX610 40T Single Chainset – 12-Speed Gravel Crankset 170mm
The Shimano GRX FC-RX610 40T Single Chainset is a high-performance 12-speed gravel crankset engineered for mixed-terrain riding, bikepacking and cyclocross. Designed specifically for gravel cycling ergonomics and drivetrain stability, Shimano GRX delivers quiet, reliable shifting and optimal power transfer on rough roads, trails and long-distance adventures.
Featuring a 1x (single) 40-tooth chainring, the FC-RX610 offers a wide, efficient gearing range ideal for varied terrain and changing riding styles. The 2-piece HollowTech II design provides excellent stiffness-to-weight performance while ensuring long-term durability for demanding gravel conditions.
Constructed with anodised aluminium crank arms and a lightweight aluminium chainring, this crankset balances strength and low weight for confident off-road performance. The 4-arm, 110mm BCD design ensures compatibility with Shimano’s proven GRX ecosystem and 12-speed HG chains, making it a perfect upgrade or replacement for modern gravel drivetrains.
- Shimano GRX FC-RX610 gravel chainset
- 12-speed single (1x) crankset for gravel & cyclocross
- 40T chainring optimised for mixed terrain riding
- 2-piece HollowTech II design for stiffness and durability
- Compatible with 12-speed HG chains
- Designed for HollowTech II bottom brackets
- Anodised aluminium crank arms
- Lightweight aluminium chainring
- 4-arm, 110mm BCD
- Crank length: 170mm