C/SET GRX RX610 46/30 dbl 12spd 165mm

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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