Radial ST175/80R13 Trailer Tires are Not Rated High Enough for a 3,500 Pound Trailer

Question

Question:

radial st 175/80 r 13 tires are rated at 3200 pds. my gross weight on trailer is 3500 pds. can i run these tires for short distance, to dump tanks etc. or should i go with a bias tire.

asked by: Scott P

0

Expert Reply:

The bias ply tires and radial tires in size 175/80-13 in a load range D are going to have the same capacity: 1,610 pounds at 65 psi. The radial is # AM10210 and the bias is # AM1ST77. You will want to match or exceed the trailer capacity and I do not recommend using the tires if you will be over their capacity, even for short distances.

The solution is to go up to a 185/80-13 tire load range D. This size is going to be only 0.3 inches taller than the 175s and will also be 0.394 inches wider. You will need to make sure you have the space all around the tire for the larger size. For a bias tire in this size use # AM1ST79. A radial is not available in a 185.

expert reply by: Michael H

0

Answer 1

The Karrier ST175/80R13 Radial Trailer Tire #AM10199 that is on the Wheel and Tire Package #AM31952 is Kendas best tire in this size. It is their KR03 tire line and uses Double steel belts and full nylon plies combine for superior function and long…

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Answer 2

The tire manufacturer for the Karrier ST175/80R13 Radial Trailer Tire with 13" Galvanized Wheel #AM31994 that you referenced is Kenda and is found as part #AM10210 on our site. The wheel is from Americana and is found as part #AM20234 on our…

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Answer 3

Yes, the 185/80-13 tire size of the #AM10210 that you referenced fits the same wheels size as the 175/80-13 that you referenced so it will fit and work great. These are radials like you want, have a higher speed rating at 81 mph, and also have the…

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Answer 4

The Kenda 175/80-13 size tire you asked about, part #AM10210, actually has a maximum speed rating of 81 mph. Traditionally pretty much all trailer tires had a max rating of 65 mph but recently that's changing. Tire manufacturers have been testing…

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Answer 5

Karrier and Loadstar are two different brand names used by Kenda. There's no difference in quality or function between the two brand names. For a ST175/80-13 Radial trailer tire in load range D, I'd recommend part #AM10210 if you're…

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Answer 6

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 7

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 8

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 9

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 10

The difference between an load range C and load range D tire in the same size is the capacity and psi rating. The two tires will still have the same dimensions and fit on the same wheel. The D rated tire has a higher capacity. For a ST175/80D13 like…

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Answer 11

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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Answer 12

The two sizes you mentioned are pretty similar and fit many of the same 15 inch wheels. The 205/75-15 fits rim widths of 5 inch to 6 inch whereas the 225/75-15 fits widths that are 5 inch to 6-1/2 inch. The 205 is 27.1 inches tall and the 225 is 28.4…

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Radial ST175/80R13 Trailer Tires are Not Rated High Enough for a 3,500 Pound Trailer

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