Shimano FC-RX810-1 Front Crankset GRX 172.5mm 40T 2022 Ships within Australia In stock. Available via Click and Collect or Buy Online Share Loading Facebook Like button... Shimano FC-RX810-1 Front Crankset GRX 172.5mm 40T 2022 Ships within Australia In stock. Available via Click and Collect or Buy Online Share Loading Facebook Like button...