Quote:
Originally Posted by CWtheMan
Without knowing the cause for the first tire failure, it's hard to make any recommendations. When inflated to the trailer manufacturers recommendation on the certification label your tires provided adequate load capacity in accordance with the RVIA 10% reserve requirements. So that leaves three possible causes; under inflation, over loading or foreign object tire damages.
IMO, all failures after the first one may have been caused by the instant overloading of the tire fore or aft of the failed tire. With a heavy trailer having 7000# axles even the tires on the other side of the trailer may have suffered from the instant failure at highway speed.
Remember, internal tire damages are cumulative, meaning the overloading could cause the tire to suffer some load carrying abilities. Therefore, it will degrade rapidly because it's overloaded.
There are at least a dozen ST tire manufacturers that build tires the same size and load capacity as your OE tires, all offshore.
The RV industry recommends changing all tires on the same side as the failure because they suffered the shock of instant overloading.
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The 4th possibly is cheap a## Chinese tires, aka China Bombs!
Regardless of what the RVIA specs may be for the recommended load carrying capability there are just some brands of tires, HiSpec, TKs & couple others, that aren't adequate to be put on a covered wagon. I can't believe every blow out on those few brands are all due to those 3 cases of abuse by the rv owner you've quoted, too much of coincidence that those brands blow up.