Just picked up a neglected Peugeot at a local flea market for $60. She's a beauty, but she's also replacing my ->STOLEN<- mountain bike/DIYbrid that I've been using to commute on for years.
It came with a 700x23c tire on the front, and a 700x28c tire on the rear. The rear tire is decent/good. The front tire is a decaying gumwall.
I was thinking I might want to replace my rear tire with a 700x32 and move the 700x28 to the front. I've read that clearance is the concern, is there a formula or a way to check, or should I just measure out another 4mm from the current tire and see if the frame has the space? That simple, no? No other concerns?