[Stripit]

I think he ment, when two tires are on the same side of the trailer and 1 tire fails, rapid loss of pressure as in blow out, the weight of that side of the trailer that was supported by 2 tires is now mostly being carried by 1 tire, the one with air. It does stress the tire and stastictics show that that sudden load of extra weights do harm the tire. They seem to fail after a while, that while could be a hundred miles or many thousands of miles, but they seeem to fail.