Dropout spacing confusion
I converted my mid 80s road bike from 6 speed freewheel rear (126 spacing) to a 7 speed free hub rear with cassette. The hub came from a 700c road bike rear wheel of a late 80s early 90s Trek. It is a Shimano Exage hub. I measured it and it is 130 on the spacing. I cold set my rear drop outs and all is good. I just recently stumbled across some info that says 6 and 7 speed road bike rear spacing is 126 and 7 speed mtb spacing is 130. But this hub was from a road bike. What am I missing here?