Shimano FC-RX810 GRX chainset 42T, single, 11-speed, Hollowtech II, 172.5 mm
Kurbelgarnitur GRX 810 172, 5mm 42 11v 1x (fcrx8101dxb2). 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.