Recommended Tire Replacement for 155/80R13 Tire on a Shorelander Boat Trailer

Question

Question:

I have an older Shorelandr boat trailer that is in need of new tires. Current tires, SR155/80R13, are now obsolete. Viable options: 530x12 and 145/80R12 D/E? What are the pros/cons of each? Thanks.

asked by: Jim

1

Helpful Expert Reply:

I recommend the 145/80-12 over the 5.30-12 simply because the it comes in a Radial construction while the 5.30-12 is only available in a Bias construction. Either one can be used for a boat trailer, but Radial is overall better for highway use which is why I recommend going that route.

For a 4 on 4" bolt pattern I recommend the part # AM31208HWT which comes with an aluminum wheel but if you have a 5 on 4-1/2" bolt pattern the galvanized wheel kit # AM31202.

I'm linking some review videos of each tire/wheel combo for your reference.

expert reply by: Jon G

1

Jim

5/29/2024

Jon, As I get closer to taking action on tires, I have more questions. I like your recommendation. Would you suggest I purchase the 145/80-12 radial tires pre-mounted or have a local station mount/balance on some existing 12 inch rims with bias tires that I have (new in 2017)? Or is that strictly a financial decision? I have the 5x4.5 pattern. Thanks

Jon G.

5/29/2024

@Jim It's purely a financial decision. If you choose to keep your current wheels and have a shop mount the tires then you'll just need the Kenda Karrier S-Trail # AM10130 instead of the whole tire and wheel combination.

Answer 1

Hey Eric, the closest tire size to the ST155/80R13 you have is the ST175/80-13. I did some calculations on the tire sizes and found that the difference between the 175/80R13 and the 155/80R13 is pretty small. The 175/80 is 24 inches inches tall…

view full answer...

Answer 2

Thanks for the picture and info of the wheel you have now. The closest and best option for a replacement is the Dexstar part #AM20377 you referenced. This has the correct design, size, and bolt pattern so it would do a really great job. This has a…

view full answer...

Answer 3

A 5.30 X 12C tire is going to be your best replacement. If you need the 4 on 4 inch bolt pattern #AM30780 is a good option, or #AM30820 for the 5 on 4-1/2 inch bolt pattern. These both have the wheel and tire included, which you'll need, since…

view full answer...

Answer 4

Depending on how many tires you have determine if the tires will be overloaded. It's kind of like axles. If you wanted to carry a 5,000 lb piece of equipment and you have two 3,000 lb axles then you will be fine since you have a 6,000 set up.…

view full answer...

Answer 5

You are correct, the closest tire size to the 155/80D13 tires on your boat trailer is going to be the ST145/R12 which will be about 1-1/2" shorter and 1/2" narrower overall. Since this tire uses a different size wheel you will need to order…

view full answer...

Answer 6

I did some calculations on the tire sizes and found that the difference between the 175/80R13 and the 155/80R13 is pretty small. The 175/80 is 24 inches inches tall whereas the 155/80 is 22.7 inches tall for a difference of 1.3 inches total, but that…

view full answer...

Answer 7

If you go up to 175/80-13 sized tires, like # they will be about 1-1/2 inches larger in diameter and about 1/2 inch wider. You want at least 3 inches between the tread and fender and an inch between the sidewall to the inside of the wheel well. If…

view full answer...

Answer 8

The tire size you have is not designed for use on a trailer as it's a passenger vehicle tire size. That's actually what the "P" in the tire size references. You want a tire size that starts with ST which means it's for a trailer…

view full answer...

Answer 9

Both an ST145/12R, like part #AM10130, and 5.30 x 12, like part #AM10068, will both fit a 12" wheel with the only difference being the overall diameter and section width. The #AM10130 has an overall diameter of 21.3" and section width of…

view full answer...

Answer 10

I have an answer for you to clear of some of the differences. If you have the tire size of P155/80R13, the "P" stands for passenger car tire and the "R" stands for radial tire. The radial means the way the steel cords/plys are…

view full answer...

Answer 11

The 155/80-13 tire you are referring to is a very odd size which is why you are having such difficulty finding a replacement. We do not carry a tire in this size but I do still have an option for you. A 155/80-13 tire is going to be 22.8" in…

view full answer...

Answer 12

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.

view full answer...

Recommended Tire Replacement for 155/80R13 Tire on a Shorelander Boat Trailer

Products Featured in This Question

Featured Help Information

Miscellaneous Media

Continue Researching