SHIMANO Front Chainwheel 170mm 9S with Chain Guard BB Sold Separately EFCR3000CX04C (ROAD) FC-R3000 50×34T SORA(SORA)

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Shimano part: EFCR3000CX04C Type, rear compatible speed 2 piece crank (5 arms), 9 speed Number of teeth / crank length / chain guard 50x34T / 170mm / included PCD, chain line 110mm, 43.5mm Compatible bottom bracket, chain BB-RS500/RS500-PB, HG-9 speed