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

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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Answer 5

Welcome back Jane. The Taskmaster 4.80R12 Radial Trailer Tire w/ 12" Vesper Silver Mod Wheel item #TA99QR weighs 18 lbs. This wheel tire combo includes an older 4 on 4 lug nut pattern. This is a load range C radial tire with a 990 lbs capacity.…

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Answer 6

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 7

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 8

Hi John, you did but that was six years ago and that part number with the tire mounted has since been discontinued. The answer is still the same as before, we only have them available separately.

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Answer 9

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 10

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 11

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 12

Hey David, Unfortunately, Harbor Freight trailers do not use standard spindles and require a 30205 bearing with a specific 0.985" inner diameter. So, while we have bearings and hubs with similar dimensions to theirs, we do not have the exact…

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

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