Can 4.80-12 Tire be Replaced with ST145/R12 Tire Using the Same Wheel

Question

Question:

I have 4.80 - 12 load c bias tires now and am wondering if the Kenda Karrier S-Trail ST145/R12 Radial Trailer Tire - Load Range E will fit my rim?

asked by: Lance M

0

Expert Reply:

Yes, the Kenda Karrier S-Trail ST145/R12 Radial Trailer Tire # AM10140 referenced in your question will fit the same 12 inch wheel with a 4 inch width that your existing 4.80-12 size tires are mounted to. Just note that the ST145/R12 tire will be about 0.8 inches larger in diameter, so you will want to make sure you have the necessary clearance on your trailer for the slightly larger tire size.

This Kenda radial ply tire is going to provide an excellent upgrade over your existing set. The tire features a maximum load of 1,520 pounds at 80 psi and a maximum speed of 81 mph. It includes a 2-year limited warranty.

I have attached a short video demonstration on this tire that you can also check out.

expert reply by: Chris R

0

Harold

4/27/2024

81 mph

Chris R.

4/27/2024

@Harold Thanks Harold! Looks like the specs on the tire changed at some point. The original answer is updated now.

Harold

4/28/2024

Bias plies are 65 mph.

Answer 1

Hi Frederick! We do indeed have the Kenda Karrier S-Trail ST145/R12 Radial Trailer Tire - Load Range E #AM10140 pre-mounted on a few wheels and I have all four of those listed below: Kenda Karrier S-Trail Radial Tire with 12" Aluminum AM01 Wheel…

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Answer 2

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 3

Hello Mark, thanks for getting in touch. The 145/R12 tires and the 4.80-12 are similar but not exactly the same size. The 4.80-12 tires are 4.9" wide and 20.7" in diameter when fully inflated. The 145/R12 tires are going to be about…

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Answer 4

The closest metric trailer tire size to a 4.80x12 is going to be a 145/80-12. The typical diameter of a 4.80x12 tire is 20.5 inches. On a 145/80-12, it is 21.3 inches. So the metric size will be a little over 1/4 inch taller. Make sure to measure the…

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Answer 5

This is a question we get pretty frequently as there is definitely some opposing ideas and incorrect information out there in the world of the interwebs. That said, unless otherwise stated by the tire manufacturer*, you always want to run your tires…

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Answer 6

The psi of your trailer tires will be listed on the side wall. It will list the max psi which is what you will want to fill them to regardless of how much weight you have. For reference, the 4.80 x 12 tires we carry have a 60 psi max for load range B…

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Answer 7

Load range D has a capacity of 1,220 lbs at 65 psi, whereas load range E has a capacity of 1,520 lbs at 80 psi. Basically the only difference between the two is the weight capacity. With trailer tires you always want to have them inflated to their…

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Answer 8

Trailer wheels like what is included with the Kenda 5.70-8 Bias Trailer Tire with Wheel #AM30153 are centered on the lugs, not the hub, so the pilot hole size does not matter (as long as it's large enough to fit over the hub). The bigger pilot…

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Answer 9

Since both a ST145/R12 size tire, like the Kenda Karrier S-Trail #AM10130, and a 5.30-12 size tire, like the Kenda K353 #AM10068, fit a 12 inch wheel, a ST145/R12 size tire can replace a 5.30-12 size tire. Keep in mind that these tires do have…

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Answer 10

Trailer tire sizes ST145/80R12 and 5.30-12 both fit on 12 x 4-inch wheels and when mounted both will have similar overall diameters; 21.9-inches for a 5.30-12 like Kenda #AM30820 and 21.3-inches for an item like #AM31215. We offer both of these tire…

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Answer 11

As long as you have the needed wheel well and trailer frame clearance, there is no reason that you couldn't go to a larger tire size from your existing 5.30-12 tires. The next size up from what you have is going to be with an ST175/80-13 size…

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Answer 12

Hello Justin, Yes, we do have some options with the Kenda Karrier S-Trail ST145/R12 Radial Trailer Tire - Load Range E #AM10140 already mounted to a wheel. They are all a 5 on 4 1/2" bolt pattern: - Karrier S-Trail Radial Trailer Tire with…

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Can 4.80-12 Tire be Replaced with ST145/R12 Tire Using the Same Wheel

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