Only fits Shimano GRX Crankset Only for 1x12 speed Use Brand Shimano MPN Y0SR9801T Bolt Center Diameter 110 mm Teeth 38T For Bike Type Road Bike - Racing Type Chain Ring Model GRX FC-RX610-1 UPC 192790293479 Part Type Bicycle part ColorBlack MaterialSteel BCD110mm Teeth38T .
