Quote:
Originally Posted by Hblick48
All tires have a "max psi" on the sidewall. Normally this has no relationship to the suggested tire pressure specified by the vehicle manufacturer.
The "max psi" on trailer tires specifically relates to the maximum load the tire can carry.
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The maximum load capacity of a tire is molded onto all DOT highway certified tires. The maximum load capacity is accompanied by a PSI value needed to gain that maximum load capacity from the tire.
That particular information is provided to inform installers/consumers not to exceed those values.
It's pure and simple.