• It's a single sprocket to fit on a shimano freehub.

    Think I'm going to order some from chain reaction. Chain and everything else is brand new so probs best to get a new one, there only £3-4 each.

    The idea was to test for size first then buy a new one but I've been doing the maths and I should be ok if I get a half link chain.

    Although Gattonero, how much wear on the 28?

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