Never heard the second pop...

[highside]

And so? How do you know that 120 or 150 psi doesn't do internal damage that doesn't show up until that day when you're running 70 mph for an hour or so?

Possibly because half the tires that get mounted at dealerships see this kind of pressure? I am willing to do a lot of bouncing and even a ratcheting tie down to seat a bead without getting a lot of pressure, mainly because my compressor sucks and it is faster than waiting for it to inflate to that level. Dealerships do not have that kind of patience and they DO have really good compressors.

[Busy Little Whiner]

Oh... and no way, no how are MY tires going to see over the recommended max to get them to seat. YMMV.

Yep... clear case of the scaries...

[def38]

Not so. The cords and carcass are designed to inflate to a maximum, fully inflated size and the carcass is even permanently marked not to exceed a certain pressure on the tire side. It is marked for a reason, and that reason includes over-inflating to "pop" the bead.

Whether road hazards or over inflation pose the more serious hazard is immaterial.

Extreme pressures may risk delamination or ply seperation which may not be discovered until high speeds are reached...

[Snowbird]

Extreme pressures may risk delamination or ply seperation which may not be discovered until high speeds are reached...

This is the sort of scenario I had in mind. It correlates with the manufacturer warning not to apply full power, high cornering loads, etc for the first hundred miles. Tire rubber needs to complete curing... especially where the tread attached to the carcass and where the tread joins itself where it completes it's wrap around the tire.

[Busy Little Whiner]

Extreme pressures may risk delamination or ply seperation which may not be discovered until high speeds are reached...

Not extreme pressure but extreme heat will cause ply separation... a problem associated with low tire
pressure... so mind those tire pressures and keep them up...

[Woodys Euphemisms]

Not extreme pressure but extreme heat will cause ply separation... a problem associated with low tire
pressure... so mind those tire pressures and keep them up...

Correct once again.   I would add to that, not just low tire pressure but high speeds as well.

Stop being a chicken, Snowbird.  Give that sucker some air.