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

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 2

When upgrading your wheels to a bigger size it is crucial to make sure the bolt pattern in the same on the new wheels compared to the old wheels. To measure the lug pattern measure between the lug nuts and count how many lug nuts you have to make…

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Answer 3

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 4

The trailer tire manufacturers we work with all have recommended the information you have seen given in our online answers. The max PSI from most manufacturers the listed capacity at the highest load capacity rating of the ST tire. There are charts…

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Answer 5

The item you selected, Sealed 2-1/2 Trailer Light, part #MC57AB, is a 2-1/2 inch light that will mount into a 3 inch hole using 2-1/2 inch grommet, part #A55GB. The hole size to mount a 2 inch round light flush mounted would be 2-5/16 inches. The…

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Answer 6

You will need to cut a 2-5/16 inch mounting hole for installation of the 2 inch Round Flush Mount Grommet, item #A54GB, and the Sealed, 2 inch Round Trailer Clearance and Side Marker Light, item #MC53RB. The proper wiring pigtail for this light is…

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Answer 7

In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.

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Answer 8

The difference between the Class II and Class III hitches has to do with their Gross Trailer Weight (GTW), their Tongue Weight (TW), and their Hitch Receiver Size. Class II trailer hitch receivers have a 1-1/4 inch receiver and can be rated up to…

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Answer 9

Hey Bryan, that's a good question. The pricing can definitely be misleading, but I wouldn't use it to judge the quality of the tire. A lot of that comes down to promotions, inventory, and whether you're looking at a tire by itself or…

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Answer 10

According to Blue Ox, it'll take an experienced installer about 4 to 5 hours to complete the installation of their #BX1128 Base Plate Kit on a 2016 Jeep Grand Cherokee. The install isn't what I'd call super-difficult, but the installation…

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Answer 11

The 5.30-12 tires, being wider, are going to make more contact with the road. This means that the noise, and heat build up will be higher than a 4.80-12 tire but the rolling resistance will actually be less because the tire is larger diameter. The…

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Answer 12

It sounds like you are speaking of the wires for the brake magnets. If this is correct, you will need to connect one of the wires to the brake controller output wire on your trailer connector and the other wire will need to be grounded to a clean…

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

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