• Hi

    It does appear to be 135BCD & 80 (ie 79.5). What I am not altogether clear about is the 3/32 vs 1/8 business.

    Your post was a bit unclear. Am I right in thinking that it is likely I have a 3/32 or smaller chain, so that will not work with your 1/8 chainring?

    Cheers

    Dan

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