- Shimano GRX, with its gravel specific ergonomics, optimized gearing options, rugged reliability, and quiet and stable drivetrain, sets itself apart from the rest of the component world
- The HollowTech II 12-speed single chainset offers optimum gearing for mixed terrains and riding styles
- Designed to work with HollowTech II type bottom bracket cups
- Compatible with 12-speed Hyperglide+ chains
- Anodized aluminium crank arms
- Lightweight aluminium chainring
- 4 arm, 110 mm bolt circle diameter
Shimano GRX
Fc-Rx820 Grx Chainset 42T, Single, 12-Speed, Hollowtech Ii, 172.5 Mm
£229.99