Thats some scary shit with that tire.
That particular rim is called a Bud rim. The older rims had a split ring that would fit into the rim. Thats not common to happen to a Bud. I don't know what happened other than the tire may have blown.
Those split rims should always be filled in a cage. They have popped and decapitated people and or stuck them into the ceiling.
When I was riding in the Motor Drome, we had a flat on the trailer that needed to be fixed. One of the riders had the tire repaired but was filling it up him self in front of the Drome. He was lucky that he had laid the tire down with the split ring facing down ward.
When that ring popped, it sounded like a stick of dynamite going off.
It raised the tire and the guy that was filling it at least four feet off the ground. The guy came down first and the tire, at least 100 plus lbs, landed on top of his head.
he took a quick trip to the hospital. He was lucky. If that ring had have blasted upward, he would have been dead.
I was hauling fuel one day and pulled into the bulk agents. I had a flat on the trailer. After I got the hoses hooked and pumping off, I came around to find that the agent was already changing the flat for me. The split rims also have a lug that goes on before the lug nut. He had all the lug nuts off and the inner lugs were still on the rim. I asked him what he was doing.
I explained to him that those lugs had so much pressure behind them, that if they were to pop, one could quite easily travel a halh block or go thru his head or chest. I said, I will show you. I carefully put all the nuts back on from the side so that if any were to pop, only my hand was in the way.
Once on, I took a hammer and cracked a lug. It popped with such force and sound that the guy jumped. I told him that could have been his head.
He said that he has always done it that way. I said, don't do that any more. Thats how farm accidents happen. One minute alive, next minute, you have wings.
I was working the ER one night when a farmer came in. His head was wrapped in a towel. He had tried to pull a stuck tractor out of the mud with another tractor.
he hooked 2 chains together with a connector link. When that chain let go, the chain came into the back of his cab and thru his head.
Obviously the towel was on his head to keep his grey matter in. When the towel came off, out came his brain.
DOA.
Hahaha. Turned snow man cookie into Jaba the Hut cookie.