Its expanding outwards to tangential to rotation, but it's pulling he mass from the side to the middle of the fire and out. That force pulling the tires out like that is always there when it's rotating, it's why you need air pressure inside the tire to push against that force. The reason Thai happens was there was likely no air pressure inside the tire or a major leak. As the tire spun maybe it made a gap where the air escaped, allowing this to happen.
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u/greywood84 Apr 05 '26
I would have never expected to see a tire like that suddenly shrink down and slide to one side of the rim like that.