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compatibility - Why is the Shimano R3030 FD not compatible with the 3503 FC? - Bicycles Stack Exchange
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Shimano Sora FC-R3030 Crankset - 175mm, 9-Speed, 50/39/30t, 110/74 Asymmetric BCD, Hollowtech II Spindle Interface, Gray
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Shimano Sora R3030-CG Chainring (Black) (3 x 9 Speed) (130mm BCD) (Outer) (50T) - Performance Bicycle
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