What are the Tire Pressure Ratings for ST235/85-16 Trailer Tires?

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Question:

I have a 32-foot camper weighing 8200 lbs. The tires say put 90 psi cold. Is that correct? They are ST235-85-16. Thanks

asked by: Gary

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Expert Reply:

The ST235/85-16 tires that we provide all have maximum psi ratings of 80, 95 or 110 dependent on the load rating. For example, the load-range G Provider Radial Trailer Tire, # TTWPRG235R16, has a maximum load rating of 4,080 lbs at 110 psi while the load-range E Kenda Karrier Radial Trailer Tire, # AM32743B, has a max load rating of 3,640 lbs at 80 psi.

You should go with the maximum psi that your tire's manufacturer felt was appropriate for your tire.

expert reply by: Kyle S

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Answer 1

As long as you install a valve stem like the part #AM20906 in the Dexstar Steel Mini Mod Trailer Wheel #AM20794 it would do just fine handling 110 psi. Typically it is the valve stem that is the limiting factor for tire pressure on a wheel and the…

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Answer 2

Going from the 235/80R16 trailer tire size to the 235/85R16 size is normally not an issue at all since the sizes are very similar. The difference between the sizes is the larger size has a taller diameter by .7 of an inch. Which when considering…

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Answer 3

Although they are similar in width, the 235/85R16 size tires are going to be almost an entire inch larger in diameter than the 235/80R16 size tires. This means that your trailer won't be completely level while you are towing and your tires…

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Answer 4

Often an axle's weight rating will appear on a sticker or plate on the axle beam itself, or sometimes the trailer's main identification sticker will include axle ratings. This is helpful unless of course the axles have been replaced during…

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Answer 5

For a 16 inch diameter trailer tire we have the part #TTWPRG235R16 that has a 14 ply rating and a weight capacity of 4,400-lb max load at 110 psi. This will fit a 6 inch wide rim too.

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Answer 6

Special trailer tires should always be inflated to the maximum psi pressure figure shown right on the tire sidewall. Always check pressure and inflate as needed with the tires cold, such as first thing in the morning. As you drive and as the daytime…

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Answer 7

The psi rating on the sidewall of all trailer tires is the cold PSI rating, meaning the tire should be inflated to that psi rating before the tire heats up. If your tire says 80 psi, then the manufacturer intended for that tire to be inflated to 80…

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Answer 8

I do have suggestions, and because there are no American-made ST235/80R16 load range G tires I suggestion going with the Westlake ST235/80R16 Radial Trailer Tire - Load Range G #WE76FR. It is not made in the USA, but it is made to USA specifications.…

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Answer 9

Tire manufacturers advise that trailer tires need to be filled to the max psi listed on the sidewall of the tire while cold. Your new tires should be inflated to the 110 psi when cold. That pressure will fluctuate as you use the tires and the…

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Answer 10

You always need to keep your trailer tires filled to the max cold psi rating. If your current load range G tires have a 110 psi rating then that is what you need to keep them filled to. Tire blowouts are a result of damaging a tire (like hitting…

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Answer 11

For maximum effectiveness, trailer tires need to be inflated to max psi, which will be somewhere on the tire's sidewall. For example, a load range E tire such as the Westlake ST235/80R16, #LHWL401, has a load capacity of 3,520 lbs when inflated…

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Answer 12

For trailer tires you basically just need to inflate them to their max when they are cold so that you get the full capacity as well as the best wear and ride quality. Aside from that you really don't have worry about air pressures at various…

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What are the Tire Pressure Ratings for ST235/85-16 Trailer Tires?

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