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.

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 HG chains
• Anodized aluminium crank arms
• Lightweight aluminium chainring
• 4 arm, 110 mm bolt circle diameter