High Speed Rating Trailer Tire Recommendation ST175/80R13

Question

Question:

According to everything I can research, the speed rating on the ST175/8013 tire is 65 MPH. In Texas, most of roads I travel the speed limit is 70 - 80 MPH. I have gone thru 3 sets of tires in as many years due to them chunking and blowing out. What tire can I use to be able to run the speed limit and stop burning up the tires. I am hauling a 18 foot aluminum boat so weight is not the cause. Thanks for any help you provide.

asked by: Russ K

0

Expert Reply:

I have a great solution for you. The Taskmaster ST175/80R13 Radial Trailer Tire, part # TTWTRTM1758013C is rated for up to 87 mph as it has an M speed rating.

Most trailer tires are only rated for 65 mph so this is a great option for you.

Be sure to keep the tire inflated to it's 50 psi max so that you don't cause heat to build up which is a common cause for tire failure.

expert reply by: Jameson C

0

Answer 1

The only roller bunks we carry, see link, come in 4 and 5 foot lengths. They can be cut to the lengths needed though. So for example if you needed a 9 foot section you could get 2 of the 5 foot models and cut off 12 inches of one to get 9 feet. For…

view full answer...

Answer 2

The #168233 Double Lip Grease Seal has an outside diameter of 2.332 inches and an inside diameter of 1.688 inches. This seal is not compatible with a AF2527E seal with a O.D 2.312, because, even though the O.D. id very close, the inner diameter of…

view full answer...

Answer 3

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…

view full answer...

Answer 4

The pilot diameter on a wheel, like the one with part #AM30620, is the diameter of the bigger hole that is directly in the middle of the wheel. The pilot hole diameter of the wheel for the part I just measured is 2.84". I have attached a picture…

view full answer...

Answer 5

Although the Dexstar Steel Mini Mod Trailer Wheel #AM20315 has a e-coat primer and black powder coat finish, this is option is much more prone to rust over an aluminum or galvanized rim. The powder coat finish is mainly for common trailer use so it…

view full answer...

Answer 6

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…

view full answer...

Answer 7

The closest we have to what you're looking for is a 145/R12 size tire, Load Range E rated for up to 1,520 pounds at 80 psi, but its speed rating is only 65 mph. It's the only Load Range E tire we have at that size and we don't have any…

view full answer...

Answer 8

The difference between the letter D in your ST175/80D13 and the R in the tire size of the Wheel and Tire ST175/80R13 part #AM31985 that you referenced is the tire construction. D stands for bias-ply which is a less preferred tire construction,…

view full answer...

Answer 9

The 12 inch tires that we carry are rated for 65 miles per hour. Any faster than that for extended periods and the excessive heat build up will cause tire failure. To get a tire with a higher speed rating you would have to go up in size. That also…

view full answer...

Answer 10

Loadstar ST175/80D13 Bias Trailer Tire and wheel combo #AM3S030 is rated for 65 miles per hour. If you have 13 inch wheels already then you could replace just the tires using #TTWTRTM1758013C. This tire is a 175/80-13 rated for 1,360 pounds at 50 psi…

view full answer...

Answer 11

The modern equivalent to the B78-13ST is the 175/80-13 like what is on the part #AM31242 that you referenced. You would just need to verify the bolt pattern of your current wheels to know if this would fit. This rim has a 5 on 4-1/2 inch bolt…

view full answer...

Answer 12

The Kenda 4.80-12 Bias Trailer Tire with 12" Galvanized Wheel - 5 on 4-1/2 - Load Range B #AM30590 have a max speed of 65 mph. When trailer tires are not speed rated with a letter, the default is 65 mph max. I've attached an article to…

view full answer...