Recommendation to Replace 145/80R12 Tires on Boat Trailer

Question

Question:

Hello im looking to replace my tires on a boat trailer i presently have 145/80/r12 what is the appropriate trailer tire size

asked by: Tony

1

Helpful Expert Reply:

We have a nice selection of special trailer tires in the exact 145/80R12 tire size that you mentioned. To replace the tires on your boat trailer I specifically recommend the Kenda Karrier S-Trailer STL145/R12 # AM10130 that features a radial ply construction for better highway performance and a maximum load capacity of 1,220 pounds at 65 psi. It also comes with a limited 2-year warranty.

I have attached a short video demonstration on this particular tire that you can check out as well.

expert reply by: Chris R

1

Answer 1

The Kenda Karrier #AM10140 145/R12 tire you'd looked at would be the highest rated 12 inch tire we offer. The tire has a 1520 lb per tire/3040 lb/ axle capacity which would be perfect for your pop-up. The tire is compatible with 12 x 4 inch…

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Answer 2

A 155/12 tire will be about 6.1 inches wide. The closest match is a 145/12 at 5.7 inches wide. I have included a link to all of the tires and tire/wheel combos we have in this size. A 155 isn't a trailer tire size (unless it has an ST in…

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Answer 3

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…

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Answer 4

Carlisle and Kenda trailer tires are about the same in terms of quality. We only sell Kenda currently so I'll try not to give you too much bias...but the Kenda Karrier S-Trail ST145/R12 Radial Trailer Tire #AM10130 that you referenced is very…

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Answer 5

Trailer tires are designed to fit on certain wheels so if you have ST145/R12 trailer tires now, you do need to replace your tires with the same size or they won't fit. I recommend the Kenda Karrier S-Trail ST145/R12 Radial Trailer Tire - Load…

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Answer 6

For a tire to replace the 145/R12 size tires currently on your trailer, I recommend the Kenda Karrier S-Trail Radial Trailer Tire #AM10130. This is a great radial trailer tire that has a 1,220 pound maximum load at 65 psi. Note that this is a Load…

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Answer 7

There are several differences between radial and bias trailer tires. A radial tire is going to track better and the overall ride quality will be better as well. For a pop-up camper, I would go with radial tires. The radial size you would need is the…

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Answer 8

While a 4.80-12 size tire would fit because it is smaller, I recommend sticking with your 145R12 tire size (which is also known as 145/80R12) for a few reasons. The first reason is that the 145R12 size tires have a higher weight rating which means by…

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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 proper tire psi for trailer tires (ST) is listed on the tire as the max psi. Trailer tires are always to be inflated before a trip to the their max psi. Overfilling or underinflation will lead to premature wear or failure. I was able to confirm…

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Answer 11

The most common tire size people go to from the 4.80-12 is the 5.30-12 like the Taskmaster 5.30R12 Radial Trailer Tire #TT53012C. This will give you a width increase of 1/2 inch and a diameter increase of 1.4 inches. This tire also has a speed rating…

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Answer 12

It would be too small diameter-wise to replace a 145/80/12 with a 4.80-12. Instead you would need the part #AM10140 for just a tire in the correct size that would work well for you.

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