The Shimano FC-RX600-2 GRX 10 speed double chainrings are the perfect replacement for worn or damaged chainrings. Shimano's class leading chainrings offer the optimum balance of light weight and rigidity for precise shifts even under high loads. Featuring the 46-30T chainring combination for that lower gear range on those long off road gravel adventures to maintain a smooth pedalling action even in the toughest and muddiest of conditions. Designed to work with Shimano’s 10-speed HG chain providing more efficiency and improved power transfer Genuine Shimano replacement chainrings for the FC-RX600 2X cranksets available in 46T outer and 30T inner manufactured from lightweight aluminium and with anodised teeth for increased durability Shimano part numbers: 46T-NF - Y0K798010 matches 30T-NF - Y0K630000 which the inner ring is also suitable for 11 speed GRX Compatible chain Shimano HG 10-speed