Originally Posted by BriaBeck
That's exactly what I'm doing...
You gotta read all the words... not just the ones you want to see, while ignoring those you don't.
Choose to believe, or choose not to... but there it is in black and white, just like the bible.
That procedure was started many years ago by MAXXIS. TowMax and GY Marathons were quick to follow.
It's really not of any more use today than it was when they issued their bulletins. A high percentage of OEM wheels back then were pressure rated to match the pressure requirements of the OEM tires.
The trailer tire industry has, with very few exceptions, progressed far beyond needing excessive inflation pressures to go a little faster. Almost all ST tires now have speed ratings right on their sidewalls that are 75 MPH or greater. MAXXIS is the only hold-out, that I know of.
(I can no longer find the MAXXIS bulletin on the net. Soon after it was first published a USTMA tire publication said inflation pressures should not exceed the sidewall pressure. IMO, MAXXIS wanted to avoid a conflict and pulled their bulletin. Also IMO, the tire retailer that now publishes that information is quoting it from one of the tire manufacturer's information that is probably antiquated.)