Can a 5.30-12 Size Tire be Replaced with a ST145/R12 Size Tire

Question

Question:

Will a st145/12r tire fit on a 5.30-12 rim?

asked by: Dave D

1

Helpful Expert Reply:

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 slightly different diameters and widths though, so you will want to do some measuring to make sure that the ST145/R12 tire will fit on your trailer.

The 5.30-12 tire that you currently have has a section width of 5.3 inches and has a diameter of 21.9 inches. The ST145/R12 size tire that you are wanting to replace it with has a section width of 5.7 inches and has a diameter of 21.3 inches. Since the section width of the ST145/R12 tire is about 1/2 an inch wider you will want to make sure that you have enough clearance with the trailer frame as it sits about 1/4 of an inch closer. It shouldn't be a problem but it is always best practice to double check clearances.

Review videos on both tires that I mentioned have been linked for you to reference.

expert reply by: Jon G

1

Jon

5/2/2020

I would like to increase my tire size width and height from 5.30x12 and have a four lug rim Not sure I can get a 14” rim with a 215/75r 14 I do have room for a bit bigger though

Chris R.

5/5/2020

We don't have any 14" wheels that feature a 4 bolt pattern, so if you really wanted to make this change the hubs would need to be replaced as well (if possible). I think a less dramatic change would be with an ST17580D13 tire/wheel like the Kenda Loadstar # AM3S130. This will be about 2.1" larger in diameter and an inch larger in width.

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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

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 3

We do not carry a radial trailer tire in 5.30-12 size but there is another option. You can also use a 145/80-12. Both tires will fit on a 4 inch wide rim and can have similar weight capacities. The one size difference is that the 145/80-12 is 0.6…

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Answer 4

The Kenda K353 Bias Trailer Tire - 5.30-12 - Load Range C #AM10066 has a speed rating of 65 mph and like you mentioned a max load capacity of 1,045 lbs at 80 psi. However you should make sure that the combined maximum load rating is higher than the…

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Answer 5

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 6

Hi Ryan! The reason the Kenda 205/65-10 Bias Trailer Tire with 10" White Wheel - 5 on 4-1/2 - Load Range E #AM3H480 will not fit the etrailer Easy Grease Trailer Idler Hub Assembly for 3.5K Axles - 5 on 4-1/2 - Galvanized #AKIHUB-545-35-G-EZ-K…

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Answer 7

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 8

That's a good question, and the answer is that your current 5.30-12 tires are not safe for traveling at highway speeds. What you likely have on your trailer now is a bias ply tire, which is not good for highway use because they are stiffer and…

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Answer 9

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 10

Hey Neil. The #AM30861 and #AM35354 are very similar in size. The Kenda Karrier ST145/R12 Radial Trailer Tire #AM35354 is actually slightly smaller in diameter than the Kenda 5.30-12 tires, so out of the two 12" tires you mentioned, this will be…

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Answer 11

Given the information you provided, your 1995 Jayco 1006 ST has a Dexter Torflex #10 axle on it. The correct lift kit for that axle is the Torflex Lift Kit #K71-707-01. As you stated, this lift kit will not work with 3" high profile brackets.…

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Answer 12

Most trailer tires, including wheel and tire combo Kenda 5.30-12 Bias Trailer Tire with 12" Galvanized Wheel - 5 on 4-1/2 - Load Range C #AM30850, have a speed rating of 65mph. The only other option available that does have a higher speed rating…

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Can a 5.30-12 Size Tire be Replaced with a ST145/R12 Size Tire

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