Wider Trailer Tire than Size 5.7-8 with Higher Capacity

Question

Question:

i have 5.7-8 5 lug rim and tire on my trailer, load range c .. i want a wider tire with a higher load range on a 5 lug rim .. what do you recommend?

asked by: Gus

0

Expert Reply:

Hey Gus, if you have room for it the Kenda 215/60-8 part # AM3H323 is wider and has a higher capacity at 1,165 lbs and is 8.9 inches wide. What you have now would be 5.8 inches wide so this is about 3 inches wider. Diameter is basically exact same. Would this be wide enough?

expert reply by: Jameson C

0

Brian I.

4/30/2026

Great Tires. . Use on my Trailer which I tow 2 Quads . Feel completely safe pulling trailer at 60 mph for 9 hrs !

Jameson C.

4/30/2026

@BrianI Glad they are working well for you!

Dale

4/30/2026

I up graded to the d class so I can haul a little more weight, If I ever have to replace them it’s the only tire I will put back on, I really like them. Have tires on a 8x8 Double wide Snowmobile trailer with 2 foot sides.

Chuck A.

4/30/2026

I put this same tire and wheel combo on a Leisure Lite camping trailer that I pull behind a motorcycle. Last fall, we did a trip from Alabama to Sturgis to Montana through Yellowstone National Forest, and on down through the Tetons and Cody, Wyoming. We then returned to Alabama by way of going through the middle of the country. 80 mph on open roadways. I have since pulled this trailer over 500 miles more. I have over 5000 miles on these tires now. Really didn’t expect to get any more where out of them than that mileage when purchased. To my surprise, they are not showing any wear at all! The trailer pulls great and sticks to the road through curvy mountains, even at higher than usual speeds. One day when they do wear out, I will definitely buy the same tire wheel combo. Etrailor.com is a great place to do business so I will buy them here again.

Steve

5/1/2026

Gus, I bought these tires over a year ago and I have no complaints. The extra width gives my utility trailer more stability. Also, I been really happy with etrailer as a company. They have provided lots of information and follow-up. Steve

Answer 1

Yes, trailer tires are rated by tire. So for example, the Kenda 4.80/4.00-8 Load Range C Tire, part #AM10004, is rated up to 745 pounds at 90 psi. Two tires on one axle are rated up to 1,490 pounds. You still need to verify the weight capacity of the…

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Answer 2

Hi Stacy; 18.5 x 8.5 - 8 is an older tire size so the modern equivalent is 215/60-8. Load Range D (8 ply) is going to be the highest so you can use the #AM3H323 with a white wheel or #AM3H325 which is galvanized. Both have a 5 on 4-1/2 bolt pattern.…

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Answer 3

The metric trailer tire size corresponding to your 18.5 x 8.5 - 8 tires is size 215/60-8. In this size we offer both tires only and pre-mounted wheel/tire combinations that you can see on the linked page. The tires-only are available in two weight…

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Answer 4

Hey Mark, The tire width you can use with the 8" x 7" Americana Trailer Wheel #AM20021 is an 8.9" wide tire. You can use the Loadstar K399 Bias Trailer Tire - 215/60-8 - Load Range C (935 lb capacity) #AM1HP26 or Load Range D (1,165 lb…

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Answer 5

On your 18.5x8.5 x8 tires the actual measurements are the 18.5 inch diameter and the 8.5 inch width. The 215/60-8 tires actual measurement is 18.3 inches diameter and width of 8.9 inches. To prevent blowout, the higher load range which includes the…

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Answer 6

Trailer tires typically do not get balanced because manufacturers tend to match the heavy spot on the tire with the light spot on the wheel. It takes a special rig to balance trailer tires, equipment that not many tire shops have anymore. The other…

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Answer 7

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 8

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 9

The difference between the Class II and Class III hitches has to do with their Gross Trailer Weight (GTW), their Tongue Weight (TW), and their Hitch Receiver Size. Class II trailer hitch receivers have a 1-1/4 inch receiver and can be rated up to…

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Answer 10

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 11

It sounds like you are speaking of the wires for the brake magnets. If this is correct, you will need to connect one of the wires to the brake controller output wire on your trailer connector and the other wire will need to be grounded to a clean…

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Answer 12

The difference between an load range C and load range D tire in the same size is the capacity and psi rating. The two tires will still have the same dimensions and fit on the same wheel. The D rated tire has a higher capacity. For a ST175/80D13 like…

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Wider Trailer Tire than Size 5.7-8 with Higher Capacity

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