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I've used air pressures up to 90# before. Most times a bead will be set at lower air pressure. DEPENDS on the tire maker and how old the tire is. The race of the people making the tires doesn't make a difference. It's the company making them. In the past I've different results from American, German and Italian.
in the interests of returning this thread to the polite world of real world useful information, can we all admit to using a hacksaw or a chainsaw to remove a stubborn tire when we hit the wall? "Works a treat!" as the Brits like to say! Ox acetylene torch? Now that's a bit extreme!
The incident I’m going to tell y’all about is in no way pro or con to anyone’s believes on the subject of air pressure to get a tire to “pop out” or seat. I worked at a tire shop for several years when I was in high school. I’ll never forget an incident that occurred at the shop one day when a buddy and fellow worker was attempting to get a tire to seat, or pop out, if preferred term, on a Craiger aluminum mag wheel, on a 1967 Ford Mustang fastback. Tommy, the guys name, cautiously kept adding a couple pounds at a time. I’ll never forget the number when the wheel failed. We were all standing back and offering moral support when it happened at 86 LBs. when it blew. Tommy hit the floor like he had been shot and when he stood up it was immediately obvious he was hurt. Long story short, he suffered permanent damage to his face, left eye and hearing loss in both ears. I guess I’m trying to tell anyone who is willing to listen this. Any time you have to use over 50-60 pounds of air to seat a tire, start using caution and take every preventing measurement possible. A tire cage preferably and position your hand out of harms way. Just an olds guys over caution maybe.
Amen. and the tire does not have to leave the rim to be dangerous. I have a friend who almost got killed when the bottom of the ATV tire he was changing popped out sending the tire and wheel upwards like a rocket. After almost decapitating him, the tire/wheel assembly bounced off the ceiling of his garage.We used to sometimes wrap chains around the split rim/tire in case the locking ring came off. The chain trick would not have helped my friend. The chain merely would have been part of the tire/wheel projectile.
https://motorandwheels.com/where-are-tires-made-brands/