Meet the Shimano GRX FC-RX820-2x Crankset, a finely tuned balance of weight reduction, enhanced efficiency, and versatile gear options tailored to the diverse needs of mixed-terrain cycling. With a gravel-optimized 48-31t gear combination, it maintains riding rhythm on uneven surfaces, and the 17t range caters to various riding conditions. The crankset's Hollowtech II arms offer a blend of strength, stiffness, and weight savings, ensuring optimal performance. Designed for precise cadence control on mixed terrains, this crankset is compatible with HG 12-speed chains and features a 47mm chainline.