Quote:
Originally Posted by V8 Bob
The "safety" wheels first appeared around 1940, long before radial tires.[
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Well, actually quite some time before that. When major auto manufacturers began using them is the main subject.
What I was trying to get across (not too well) is that the most likely reason the tire did not leave the rim is because it was most likely a safety-rim design.
Quote:
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Wheels gained strength over the years simply because of increased vehicle weights and higher speeds.
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Yes, and including the more frequent use of radials.
Quote:
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I have never seen or heard of any radial-specific wheels during the bias/belted tire era up to the '70s.
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Well, I have. A radial puts much more side stress on a rim bead that does a bias-ply.
Photos showing non-safety and safety rim design.
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- WHY IS IT ... 
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... that everything you buy in the grocery store is either wrapped in or contained in plastic but the government doesn't want you to carry it out in a plastic bag?
WONDERING IN W(BY GOD)V ...
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