the distance between the front and rear chainring with be the same (or similar enough) to work with a modern derailleur?
No, in short.
So would have to be a 1x setup? If you have the time, I'd be interested to know why.
Yeah ignore what I said there. I was thinking of new chainset with older front derailleurs, which I've found more of a problem - derailleur not moving far enough outboard.
@samrensho started
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No, in short.