Recommended Replacement Tires for Boat Trailer with 165/70-12 Tires

Question

Question:

I have a 20 year old trailer and need new tires Size is. 165/70/12 What do I use to replace

asked by: Darryl

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Expert Reply:

For your boat trailer, I recommend using a 145/80-12 to replace the 165/70-12 tires that you have on your trailer now. This new size will only be slightly narrower and about the same diameter as the tires you have now so there will be no fit issues with this new size.

I recommend the Kenda Karrier S-Trail part # AM10140 which has a radial ply so it will be great for highway trips and it has a two year warranty. As long as your trailer/boat does not weigh more than 1,520 lbs multiplied by the number of tires you have then this will be an excellent replacement option for you.

expert reply by: Conner L

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Answer 1

Hey Jon! We do have a 175/80D13 bias trailer tire with a 5 on 4-1/2 in a galvanized finish. It is the Loadstar item #AM31242. This is a load range D tire with a 1,660 lbs capacity. We do not have a galvanized wheel with the 10 circle pattern. If you…

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Answer 2

Hey Kelley, thanks for reaching out! Yes, you'll want to change something up. We recommend having around 4" of clearance above the tire to account for suspension flex, so since you only have 1" that's probably why the previous owner…

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Answer 3

Hey John, since you have a 5 lug 12 inch wheel currently and want to upgrade to a 13 inch wheel what you really only need to do is match the bolt pattern of what you have to the new wheel you are looking for. Most likely it's the very common 5 on…

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Answer 4

Hi Butch; your typical 155/70R12 tire has a 20.5" diameter and section 6.1" width. A 4.80-12 tire like the Taskmaster 4.80R12 Radial Trailer Tire #TT48012C has a diameter of 20.63" and 4.84" section width. 155/70R12 tires are not…

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Answer 5

The smallest diameter 13 inch trailer wheel and tire will have a diameter of 24.1 inches (ST175/80-13). There are 3 common 12 inch trailer tire sizes: 4.80-12 has a diameter of 20.5 inches, 5.30-12 has a diameter of 21.9 inches, and 145/80-12 has a…

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Answer 6

Hello Mark, thanks for getting in touch. The 145/R12 tires and the 4.80-12 are similar but not exactly the same size. The 4.80-12 tires are 4.9" wide and 20.7" in diameter when fully inflated. The 145/R12 tires are going to be about…

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Answer 7

We do have tires that will work for you, although tires that are size 155R12 are likely automotive or light truck tires, so there isn't a direct replacement of that size for trailer tires. A tire that is very close in size is 145/R12, and I…

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Answer 8

Generally speaking you will want to have 3 inches minimum from the top of your tire to the fender of your trailer to accommodate for suspension travel. Having a little more wouldn't hurt, but I wouldn't recommend any less than 3 inches.…

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Answer 9

The closest we have to the 19-1/4" length is the 3-Leaf Double-Eye Spring #SP-072275. It is 18-5/16" from eye center to eye center on the double eye spring. I have included the rest of the measurements below so that you can compare with…

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Answer 10

You actually should shoot for 4-1/2" of clearance between the top of your tire and the bottom of the fender well. This accounts for flex in your suspension. Unless 2,280 lbs is the GVWR (gross vehicle weight rating) of your trailer then you need…

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Answer 11

Hey Sam; thanks for the question and yes it is possible to go from a 3,500 lb torsion axle to a spring leaf axle on your boat trailer. You'll need to have new hangers welded on, as well as get leaf springs and, of course, the axle itself. For the…

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Answer 12

I have two options for you to raise your trailer and gain more clearance between the fender and tire. The most cost effective option would be to flip the axles with a Dexter Trailer Springs Over-Under Kit part #K71-384-00 or part #K71-385-00. That…

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Recommended Replacement Tires for Boat Trailer with 165/70-12 Tires

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