Road rear derailleurs are cross-compatible (8/9/10) and also MTB up to 10-speed (those have different cable pull ratio).
Obviously, cassette has to be matched to the shifters.
@cybernck started
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Road rear derailleurs are cross-compatible (8/9/10) and also MTB up to 10-speed (those have different cable pull ratio).
Obviously, cassette has to be matched to the shifters.