Originally Posted by
robtee92
Wow I'm surprised at all the replies I got
The big giant point is that for months on the first set of ancient decaying gumwall tires, and weeks later on some brand new gumwall tires I was able to inflate it to 110psi with no problems, and now I'm not. This leads me to believe there's something wrong with the tire but close inspection doesn't reveal anything wrong.
Tire beads do tend to relax a bit after being on a rim for a while. So the new tire might have been just barely able to hold onto a rim at 110 psi when new, but has now relaxed to a point where that's not possible.
Once a tire has been blown off a rim, its bead has likely been relaxed quite a bit.