What is the Difference Between the Load Range D and E for the Tire Size ST145R12

Question

Question:

What is the difference between the load rating D and E? I know mine are ST145R12 S-Trails but Im not sure which Load Range. Also is there a slightly wider tire I could use?

asked by: Jacqui

0

Expert Reply:

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 maximum that way you get the best handling, braking and wear characteristics.

You should note that if you increase the load capacity of your tires it will not necessarily increase the overall capacity of your setup. You must always go with the lowest rated component in your towing setup as the overall capacity.

I attached a couple FAQ articles on trailer tires for you to check out also.

We do not have any wider tires that will fit your rims either.

expert reply by: Jameson C

0

Thomas

4/13/2020

Who will sell me 2, 13”, trailer tires with load range E or F ?

Reply

Chris R.

4/14/2020

The highest capacity 13" tire we have available is a Load Range D ST185/80R13 like the Kenda # AM10208. This radial ply tire features a maximum load of 1,710 pounds at 65 psi. We don't have any 13" tires in a Load Range E or F.

Reply

Answer 1

Hey Carmen, for the Kenda tire part #KE28KV the warranty is: Kenda's warranty states that the 1-year warranty is for the tire only as opposed to the wheel, and the warranty is through Kenda tires. For the first twelve months from the date of…

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Answer 2

The Kenda 5.30-12 Bias Trailer Tire with 12" White Wheel #AM30859 will fit your Harbor Freight trailer as long as it uses the same 5 on 4-1/2" bolt pattern. The larger pilot hole diameter is not a problem since the wheels are lug centric…

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Answer 3

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…

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Answer 4

Typically, when the outside edges of a tire are showing wear its because the tires are under-inflated. The solution is to inflate the tires to the maximum pressure listed on the sidewall. Now if the outside of tires have what looks like gouges are…

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Answer 5

It is okay to have different load range tires on each axle of a tandem axle trailer on a temporary basis but I do not recommend using the trailer in this configuration in the long term. Also, it is never a good idea to mix tires of different sizes.…

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Answer 6

Assuming your trailer wouldn't need the capacity of the higher Load Range and you could use the LR C or LR D I'd go with the #AM10235 over the #TR20514 as it has a longer warranty at 5 years when compared to 2 years.

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Answer 7

Hey Dave, I wasn't able to find any wheels listed at $163, but I was able to find the Karrier ST205/75R14 Radial Trailer Tire with 14" White Wheel #AM32153 and the Loadstar ST205/75D14 Bias Trailer Tire with 14" Black Wheel #AM3S451…

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Answer 8

Hey Michael, I would go with the Kenda Karrier ST145/R12 trailer tire part #AM10140 for your pop up. It fits the same wheel you have and is a radial with a higher speed rating and weight capacity. Have you had any issues with trailer tires in the…

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Answer 9

The difference between the two trailer sizes you referenced is that the 5.30-12 will be about 1-1/2 inches taller than the 4.80-12 and would have more capacity. As long as your trailer has the clearance for a slightly taller and wider tire a 5.30-12…

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Answer 10

The Kenda Karrier S-Trail #AM31199DX are going to be a more basic, white spoke wheel which is just going to give basic rust protection. An aluminum wheel that is going to provide you with the best rust protection possible, so I recommend going with…

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Answer 11

I recommend just changing the tires to the Kenda Karrier S-Trail ST145/R12 Radial Trailer Tire #AM10130 on your 2021 Forest River Rockwood 1940LTD. This will allow you to maintain your same wheels and tire clearance that you currently have. They have…

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Answer 12

Trailer tires and wheels do not typically come balanced from the factory like what you see with standard passenger vehicle tires. This isn't usually needed for trailer tires and most car shops don't have the needed setup to properly balance…

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What is the Difference Between the Load Range D and E for the Tire Size ST145R12

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