Compatibility of 4.80-12 Tires to Replace 145R12C Tires

Question

Question:

Wondering if I can use a 4.80 R12 tire to replace my trailers 145R12c ? Thanks

asked by: Matt

0

Expert Reply:

The 145R12C tires can be replaced with the 4.80-12 tires like the Kenda K353 Bias Trailer Tire - 4.80-12 - Load Range C # AM10062. It will fit on the same wheel you currently have. If you prefer to get the combination because it is already balanced and ready to install you can use # AM30660.

That tire size is only available in the Bias versus Radial from our manufacturers. The 4.80 x12 tires will be about 3/4 inches smaller in diameter and just under and inch in width as well.

expert reply by: Jason S

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Answer 1

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 2

What you could do is go up to the next highest load range. The tire will have a higher capacity and ply rating so it will be more heavy duty and last longer. Please note though that using higher capacity tires will not increase the capacity of the…

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Answer 3

I have several options to upgrade 4.80-12 wheel/tires on a trailer without replacing hubs, ranging from 13" - 15". The best option will really come down to how much space you have available and this will be different for each trailer. The…

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Answer 4

You will have to replace the spindle. Grooves that can't be taken out with emory cloth will eventually cause new bearings to fail which will leave you stranded with a locked up wheel most likely. To replace a spindle, the old one would need to be…

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Answer 5

After you've packed the bearings and assembled everything, carefully slide the hub assembly onto the spindle and install the outer bearing. Install the spindle and tang washer and run the spindle nut down finger tight, then rotate the hub back…

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Answer 6

I have attached a chart you can check out that describes the torque needed per wheel size, wheel stud size and material. For an 8-inch wheel with a 1/2-inch wheel stud the torque is 75 to 86 ft-lbs. For a 15 inch steel wheel with 1/2 inch wheel studs…

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Answer 7

The two tire sizes you referenced, 4.80-12 and 5.30-12, both fit 4-inch wide rims, but they differ in their overall diameter. A 4.80-12 tire/wheel when fully inflated will have a diameter of 20-1/2-inches while the 5.30-12 size will be just under…

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Answer 8

The closest radial tire size I would have to replace the 4.80-12 bias tire size is the Kenda Karrier S-Trail ST145R12 Radial Trailer Tire #AM10130. The 4.80-12 bias tire is 20.7 inches tall and 4.9 inches wide. The 145R12 radial tire is 21.3 inches…

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Answer 9

The 4.80 x 8 tire size that you have now is 16.1 inches tall and the overall width is 4.6 inches. If you go to the 5.30 x 12 tire size, the overall diameter is 21.9 inches tall and 5.6 inches wide. The first number (4.80 or 5.30) on the tire size…

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Answer 10

If you replace your existing ST145/R12 tires with 4.80-12 tires like the #AM10062 Kenda K353 Bias Trailer Tire - 4.80-12 - Load Range C they will fit the same 12 inch wheel with a 4 inch width. The 4.80-12 tires will be about 0.8 inches smaller in…

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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

Based on the max 90 psi that you mentioned I believe your trailer is equipped with 4.80-12 sized tires, such as the Kenda K353 #AM10062. Most trailer tire manufacturers recommend that their tires always be inflated to their listed maximum psi to…

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