Tallest Tire Available For The 13" Dexstar Steel Mini Mod Trailer Wheel AM20242

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Question:

What’s the tallest tire that will fit on this wheel? Additionally, can I order that tire, and this wheel already mounted? I would need a pair. Thanks!

asked by: James B

0

Expert Reply:

Hi James!

The largest aspect ratio (tallest) tire you can put on the Dexstar Steel Mini Mod Trailer Wheel - 13" x 4-1/2" Rim - 4 on 4 - Black # AM20242 will have an aspect ratio of 80. So the largest tire we have for this wheel is the Kenda Loadstar ST185/80D13 Bias Trailer Tire - Load Range D # AM1ST79 for a bias tire, or the Kenda Karrier ST185/80R13 Radial Trailer Tire - Load Range D # KE68KV for a radial. Keep in mind the wheel does not include a valve stem, so you will also want to grab the Americana Rubber Snap-In Valve Stem - 1-1/4" Long - Up to 100 psi # AM93FV. It's a little overrated for this kind of set up, but it doesn't hurt to over do it with these.

As to mounting them, we do not have the ability to that at the moment, unfortunately. Maybe we will some day, but really any tire shop can get this done for you. I do typically recommend going to a trailer shop though. Trailer tires are a bit different than automotive rated tires and a trailer place will likely give you a better price.

What are you wanting to install these on?

expert reply by: Lazer S

0

Kenda Karrier KE68KV Tire Size
(click to enlarge)

James B.

12/24/2025

I’m building a small custom tool trailer from an old 40x48 northern tool trailer. However my truck is tall and I also want to bring the rotations down as much as possible to extend wheel bearing life. Additionally I’m building a work surface on the trailer so I want it to be on as tall a tire as possible so it site up high. Follow up question. Are there taller tire and wheel combinations for a 12” wheel in the same lug pattern, 4on4? I am wondering about potentially using car tires on a trailer wheel as well. The trailer won’t be heavy enough to necessitate a trailer specific tire. Thanks again. Merry Christmas.

Lazer S.

12/24/2025

@JamesB Sounds like it's going to be an interesting trailer when it's finished! Let me know how it turns out! As to your follow up question, I am not aware of a 12" option that will be taller. The Taskmaster 5.30R12 Radial Trailer Tire w/ 12" Vesper White Spoke Wheel - 4 on 4 - LR C # TA79QR (which is the tallest 12" option we have) will have an overall diameter of 21.57" (the Loadstar # AM1ST79 has a diameter of 24.4" and the Karrier # KE68KV has a diameter of 24.6"). It also has less capacity (1,050 lbs at 80 psi whereas the Loadstar has 1,710 lbs at 65 psi and the Karrier has 1,709 lbs at 65 psi). It does have the same speed rating though. Have you though about changing out to a different bolt pattern? There are definitely taller option available with the 5 on 4.5" bolt pattern. I tend to steer people away from using vehicle tires on trailers as they are designed pretty differently to trailer tires.

James

12/24/2025

@LazerS I didnt think about that. Do you have a 5x4.5 hub that will fit a 1” straight spindle? Would need one with races pre installed at minimum of not fully pre-packed.

Lazer S.

12/24/2025

@James We do indeed! The etrailer Trailer Idler Hub Assembly # AKIHUB-545-2-LF-1K will work with a 1" straight axle (# L44643 inner and outer bearings which are included, as are the lug nuts, seal, grease cap, and pre-installed races) and can be used with up to a 15" wheel. From there, something like the Kenda Karrier ST225/75R15 Radial Tire with 15" White Spoke Wheel - 5 on 4-1/2" - Load Range D # AM32545 will have a diameter of 28.4" and I think you will be much happier with its size. We do have other styles and colors if you are interested as well. One thing I haven't mentioned, you do want to make sure you have roughly 3" between the top of the tire and the fender and roughly 1.5" between the sidewall of the tire and the frame/fender as well. Probably should have mentioned that earlier.

See All (5) Replies to James B. ∨

Answer 1

Typically special trailer tires are usually rated to operate at a maximum speed of 65 mph and if you exceed 65 mph, heat could build up in the tire and cause it to break down and fail. The tire I recommend for your 4.80-12 size is the Kenda #AM10062…

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Answer 2

For a valve stem that fits the same size as the one you referenced and is rated for higher than 65 psi you'd need the part #AM20906 which is rated for up to 200 psi. Since you'd be nearly exceeding the capacity of the #AM20903 once the tire…

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Answer 3

Tires that are sold alone, not pre-mounted on a rim/wheel, do not include valve stems but we do offer these as separate items. Tires that are pre-mounted and sold with a rim/wheel do of course include the valves. I have linked you to the various…

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Answer 4

If your 2016 Rockwood Aframe camper A192HW has a tire size of 185/80-13 then the best tire we have as a replacement would be the Kenda part #AM10208 which is the size you need but it's a radial and the one you referenced is a bias ply. The main…

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Answer 5

The limiting factor in a wheel's pressure capacity is usually the valve stem. Some are rated only for 65-psi, #AM20903, while others such as #AM20904 are rated for 80-psi. Part #AM20907 handles up to 100-psi and part #AM20906 is good for tires…

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Answer 6

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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Answer 7

You should be just fine using a 185/80-13 size tire in place of your 175/80-13 size tire but you'll want to check a few distances first just to make sure you have enough room. You need at least 4" of clearance space to your fender and then…

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Answer 8

Hey Matt, The only adapter we have that is going to be close to what you are wanting to do is our 7 way to 12v power adapter #PK11896. This will allow you to just simply plug into the 7 way on your vehicle and give you a 12v plug to plug accessories…

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Answer 9

In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.

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Answer 10

Hey Bryan, that's a good question. The pricing can definitely be misleading, but I wouldn't use it to judge the quality of the tire. A lot of that comes down to promotions, inventory, and whether you're looking at a tire by itself or…

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Answer 11

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 12

According to Blue Ox, it'll take an experienced installer about 4 to 5 hours to complete the installation of their #BX1128 Base Plate Kit on a 2016 Jeep Grand Cherokee. The install isn't what I'd call super-difficult, but the installation…

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Tallest Tire Available For The 13" Dexstar Steel Mini Mod Trailer Wheel AM20242

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