If I have a 14-inch wheel that measures 7.5 inches across, how do I determine the size of tire I should be looking to buy?
There used to be a couple of great tire/rim calculator sites, but no longer working, see if this helps........if not, just do a google search.......... https://www.wheel-size.com/calc/ David
It depends pn the aspect ratio of the tire. For example: a 45 series tire requires a wider rim width than the same size tire in a 60 series...