Only fits Shimano GRX FC-RX820-2 48/31T Crankset 48T Chainring is EXCLUDED. Brand Shimano MPN Y0SC9801T Bolt Center Diameter 80mm Teeth 31T For Bike Type Gravel Bike Type Chain Ring UPC 192790848945 Part Type Bicycle part ColorBlack MaterialAluminum Chain CompatibilityShimano 12 speed BCD80mm Teeth31T .
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