This trailer tire wear pattern...

Here's what i would do.
Increase the pressure to 125psi.
It will hopefully stop the tires from wearing so much on the side.
Granted that might make them wear a little extra in the middle but the middle isn't the problem,the side is.
And no,the tires will no magicly explode.

The drives i just replaced were wearing on the sides at 120 psi.
I raised the pressure to 135 psi and they wore evenly for the rest off their life.
Got the miles out off them that i wanted.

Your tires,your choice.

ps i would balancing beads in any new tires you buy in the future.
Beads adjust to each individual tire.
That's why i prefer them.

 

Crete/Shaffer inflate steers to 110 cold. When the tires are hot in the summer, they get to 125-127 PSI.

Drives and tandems are set to 100 PSI cold.

 

It seems to me that they are using steer tires rated to 120 psi (cold). Trucks with these tires typically have a label on the hood stating the tires need 110 psi.

 

Apparently you didn't understand my comments.

I said "It's not the MAXIMUM PRESSURE embossed on the tire, it's the MAXIMUM LOAD at that pressure".

 

So you are saying one can put more than the “max psi (cold state)” displayed on the sidewall of the tire? For example, 120 psi (cold) on a tire that says 110 psi (cold) on its sidewall? What source are you getting this information from? I understand people do it and that the tires hold, but my point is that they may develop over-inflation problems as there really is a thing as over-inflation tire wear, not just under-inflation tire wear (image below).

 

According to the large motor carrier I was leased to, tire wear on the sides is not an issue with DOT. They only check the tread depth in between the sides (typically 3 or 4 lines). This starts to make sense when there are tires with no tread on the sides such as some Continental tires (images below).

On the other hand, the middle of the tire really is a problem as it’s bound by the 4/32 and 2/32 (steers) rules. You have over-inflation problems when the center tread of the tire has less tread depth than the lines next to it.

It’s also worth mentioning that wheels also have a psi rating like tires. My Alcoa aluminum wheels are rated to 130 psi.

 

According to Michelin’s website, the limits on tire pressure, as you stated in your last paragraph, is based on the limits of the rim.

And it doesn’t say maximum pressure on the tire for Pete’s sake.
It says maximum load. I don’t understand why this is so confusing.

Don’t even get me started on explaining how a tandem drive power distribution actually works.....

 

Again, upload the document, snapshot of the website article, etc. Simply you stating it isn’t enough if you want to be credible.

 

Well I don’t think I can find anything other than the maximum rim pressure warning you already know about to make you believe me.
I’m going off of 42 years of owning trucks and listening to many tire experts over those years.

The only thing I can say is call Mike Beckett at MD Alignment in Des Moines Iowa and ask him.

This guy knows more about tires and alignment issues than anyone I know.

I only try to give out information I am confident about and this is one of them, but I can’t prove it to where you would deem me credible.
So with that being said, I will no longer attempt to convince you.

 

But I will add this for others to consider.
The markings on the sidewalk tell you maximum load you can haul at the pressure listed.
This does NOT mean you can haul more by increasing the pressure over the amount stated.
You can increase the pressure to attempt to correct any existing irregular wear as long as you do not exceed the rim pressure rating.
How’s that?