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@jonlubi
I've got a 49t Miche track chainring that I bought thinking I needed 135bcd. I don't. I need 130 bcd. Wow did I feel stupid when I tried to fit it...
I bought it 2nd hand but it's only had v light use, and none from me.
Need a chainring with 130 bcd (...obviously), 1/8" size and around the same tooth count as the one above. Still need a cog so am flexible about sizing. Also need a cog! Any combination that gives around 75" is what I'm after. Am running 78" on my single speed but figure I should shorten a touch for this first fixed build.