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

Reply

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.

Reply

Harold

4/28/2024

Bias plies are 65 mph.

Reply

Answer 1

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 2

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 3

The most common tire size people go to from the 4.80-12 is the 5.30-12 like the Taskmaster 5.30R12 Radial Trailer Tire #TT53012C. This will give you a width increase of 1/2 inch and a diameter increase of 1.4 inches. This tire also has a speed rating…

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Answer 4

Hello Todd, We definitely have something for you, but we do not a radial tire and wheel combo, as we only have that tire and wheel combo in a bias. It depends on your bolt pattern, and the weight of your boat to decide what the best option for you.…

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Answer 5

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 6

Hey Jim! There's no travel restrictions as far as mileage goes on the CE Smith Multi Sport Boat and Kayak Trailer item #CE48810. It is equipped with 4.80/4.00-8 bias ply tires that are rated for a maximum speed of 65 mph. You won't have any…

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Answer 7

You do indeed have a 12 inch rim. When you measure the diameter of the wheel, you'll need to measure the diameter of he wheel where the tire bead meets the wheel. I've provided you a cutaway diagram of a wheel showing where the measurement…

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Answer 8

Hey Lee, so in general the radial tire construction is preferred over the bias ply. You'll get a more stable ride and generally a little less heat build up. If you will be under the weight and speed capacity of your current tires I think…

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Answer 9

You are definitely going to need radial tires for highway speeds and the best option is the Taskmaster 4.80R12 Radial Trailer Tire #TT48012C. Radial trailer tires are constructed in a manner so they have cords which run at 90 degrees to the direction…

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Answer 10

Hi Robert! The Kenda 4.80-12 Bias Trailer Tire with 12" Galvanized Wheel - 4 on 4 - Load Range B #AM30550 you were looking at has a diameter of 20.5" when fully inflated. This is a pretty typical diameter for a tire of this size, but a…

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Answer 11

Load range B trailer tires are going to have a lower capacity than C load range tires. Basically that, psi rating, and the ply rating are the only differences. A higher load range tire would last a little longer than lower load ranges of the same…

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Answer 12

The Loadstar 4.80-12 Bias Trailer Tire with 12" Wheel #AM30670 does come with a galvanized wheel that has a silver color to them. The design of the galvanized process gives it a rough texture instead of a smooth texture like you see with…

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

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