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  • Cable pull ratio question.
    @mdcc_tester would know the answer.

    My old flatmate has Sora ST-3500 shifters. His RD is damaged and needs replacing.

    Will a Shimano RD-R3000 be compatible?

  • Thanks @landslide and @mdcc_tester

    This Shimano page is dreamy.

    I was confused because of my last attempt to pair 10 speed Tiagra 4600 & 4700.

    EDIT - That Shimano Compatibility Chart should be pinned to the top of the technical page

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