tire psi

TV door tire label mainly has OEM information for a stock tire/wheel

Most has ‘ride quality’ PSI recommendations and few has towing recommendations. That is usually in the manual and if towing heavy, use the tire sidewall PSI info (which is the max weight & PSI)

All wheels have a max weight and max PSI for that weight carry rating. Ditto info molded into the tire sidewall...both max weight carry and max PSI. Along with other info, like speed rating and class of tire

Whether wheels have a weight rating and PSI rating is an almost forever discussion with no resolution...ever

But this has helped folks understand this and use the old adage of “a chain is only as strong as its weakest link”...

In this case, look at the tire valve that your wheel has

Tire valves also have ratings to go along with the class of tire and wheel rating

I only use 200 PSI tire valves for my class “LT” tires and notice that there are many valve stems rated much lower in PSI...ditto wheels...they have PSI ratings too

So many folks have no clue and just assume the tire shop has installed the correct valve stem on their ‘up grade in class’ tires...sorry, too many tire shops will...nor understand that they have a rating

Here is a good site explaining valve stems matched to tire/wheel ratings

eTrailer, Can I Determine the psi Rating of a Wheel
Posting from iPad is wacky and links most times will not work with a hot link, so here is the link = https://www.etrailer.com/question-230756.html

eTrailer wrote:

Can I Determine the psi Rating of a Wheel

Question:
I have Goodyear G614 tires ST235/85/R16 with a 110 lb pressure . How do I determine if my steel rims are capable of handling thus pressure?
asked by: Jeff C
Helpful Expert Reply:
Since wheels will be able to withstand the psi rating of any of the tires that are meant to fit it you will need to look at the valve stem as that is the deciding factor.

If your valve stem has the rubber all the way up to the threads, like part # AM20903, then it will be rated around 65 psi. If there is some reinforcement between the rubber and the threads, like part # AM20904 or # AM20907, then your valve stem can be rated between 80 and 100 psi. The only valve stems that are rated for more than 100 psi are metal ones like part # AM20906. If your wheels do not have metal valve stems then they will not be able to hold the pressure of 110 psi that you require.

Ultimately unless you bought the wheel from us and can give me the part number then the best way to know what the psi rating of your wheel (or valve stem rather) is would be to call the manufacturer.

helpful expert reply by: Jon G
Jon G

Do disagree on one point...wheels also have weight and PSI ratings

Personally saw and fixed a trailer wheel back in the late 60’s working my way through college (mechanic, welder, tire monkey, etc)

A guy came in saying his trailer tire would NOT keep pressure and had gone to several tire shops. We were a full service shop, from commercial to racing. Shop owner wouldn’t let me work in the last two bays, because they were for commercial and split rims were the norm

Took that tire/wheel off and put it into the tire/wheel tank with an air hose clamped on

Bubbles from the steel rim area about 1/2” below the rim edge.

Not just a pin hole bubble stream, but from a crack about 2 inches wide.

The steel wheels (common and rare to have ‘mags’) and the owner asked who installed that wheel/tire.

Guy said out on the road and had a blowout and a gas station filled it by using a tire/wheel from out back...

It was a “P” class (passenger class) tire on a car wheel

Edit...here is an image of a wheel NOT rated for LT load range E tires. Tires having a rating of 80PSI and this wheel has a 60PSI rating