Review your last statement. I’ve already raised the issue of a tire that could be damaged or is defective. Those are both much more likely to have caused a blow off than running a tire that is at the high end of a (probable) legal limit at a (probable) legal limit of high pressure. Neither the width limit nor the pressure limit are the actual design limits from either company. No engineer I know would design such a system. Nor would both limits combine to make a “cliff”. For your cliff analogy to hold, you’d have to climb over a wall (rim tire width limit) that is 6 feet tall (tire pressure limit), slide uphill for 1/4 mile and provide your own water. Engineers put that much “fudge” into the limits.

That’s why I have said that pushing both limits wouldn’t necessarily result in the issue Christo613 has experienced. If he really wants the answer to the problem, he should look for other issues in addition (or instead) to those of the limits of pressure and width. Someone on these forums has said something about ounces of diagnosis vs pounds of cure.