Originally Posted by Trueblood

My guess is that you have hookless rims. I have to be careful with a few of my bikes. I won't inflate above 70 or 75 psi on the older wheels with hookless rims. Had a few blow off the rim while the bike sat in the apartment. Or, if the sidewalls are shot on the tires they can blow out. Any sign of dry rot on the the tires?