What is the Maximum Tire Pressure for ST225/75R15 Tires on a Jayco Trailer

Question

Question:

my trailer is a 33ft jayco has what I believe has the manufactures tires they are St 225/75 R 15 the tire pressure is at 50-51 pounds what is the recommended pressure for my tires. ?

asked by: Charlie J

0

Expert Reply:

To determine the correct air pressure for the tires on your Jayco trailer take a look at the sidewall. The tires should have the maximum psi listed. Trailer tires should always be inflated to the maximum psi indicated on the tire. This is because they are built with a thick sidewall to handle vertical load. If under inflated the thick sidewall can generate excessive heat. There isn't a formula for trailer tires to determine the reduced load capacity based on less air pressure.

Generally speaking an ST225/75R15 will have a psi rating of 50 psi if it is a load range C, 65 psi if it is a load range D, or 90 psi if it is a load range E. The load range should also be indicated on the sidewall.

expert reply by: Michael H

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Answer 1

The proper tire pressure at all times is the max pressure listed on the side of any trailer tires. Trailer tires are rated for weight capacity and designed to function based on that maximum tire pressure. The tires should be inflated cold, meaning…

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Answer 2

Trailer tires that have a higher weight load range will require higher pressure. The general rule is to always inflate your trailer tires to the maximum COLD pressure noted on the sidewall. All of our Load Range E tires in size ST225/75R15 appear…

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Answer 3

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Answer 4

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Answer 5

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Answer 6

I have attached a chart below which will help you identify the correct amount of torque for your 8 lug, 1/2" wheel stud. The torque setting is different with steel or aluminum wheels.

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Answer 7

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Answer 8

The Curt Rebellion XD like part #C45949-2516 and the Gen-Y Torsion 2-Ball Mount #325-GH-1124 are the two most advanced cushioned ball mounts. As far as cushioning goes the Gen-Y is the winner as it has a design that allows for more cushioning…

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Answer 9

The Convert a Ball ball mounts like the #AMSC4HD and the Curt Rebellion XD #part #C45949-2516 offer cushioning in a similar way (front to back cushioning) but the Curt Rebellion is going to offer superior cushioning to the Convert a Ball. The…

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Answer 10

The lens of #BA44FNR and #BA44FNL should pop off if you take a small flat head screw driver and pry it off. Unfortunately, we don't have any videos or instructions that show the removal. For replacement LED bulbs you can use #P340194A-360.

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Answer 11

I can end this debate for you real fast! Trailer tires, which will have an ST in front of the size, should always be inflated to the maximum psi indicated on the tire. Trailer tires usually do not have a recommended and maximum psi indication so I…

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Answer 12

On a towing setup you are always limited by the lowest rated component as the overall towing capacity since that is the weakest point. When it comes to trailer tires you always want to have them inflated to their max psi when cold. Not only do you…

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What is the Maximum Tire Pressure for ST225/75R15 Tires on a Jayco Trailer

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