What is the Speed Rating for Kenda KR25 ST145R12 Radial Trailer Tire

Question

Question:

is there a speed restriction on this tire i.e. 45 mph? im looking to replace 8inch trailer tires that are rated for 300lbs each, but can only go 45mph per manufacturer recommendation. I need something that can go at least 70 safely, and if an increased load rating is a result, thats fine...

asked by: Jeff

1

Helpful Expert Reply:

Kenda ST145R12 trailer tire # AM31208 is rated for 65 miles per hour. I do not recommend doing 70 miles per hour when towing a trailer if for no other reason other than the tires are not rated for it. What will happen is that the higher sustained speed will produce excessive heat. Heat is the number 1 enemy of tires.

What can make this even worse is that trailer tires are built with a thicker sidewall compared to passenger vehicle tires. If under inflated the thicker sidewall will produce excessive heat as well, even within the speed rating. Always inflate trailer tires to the maximum psi indicated on the tire.

expert reply by: Michael H

1

Answer 1

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…

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Answer 2

I verified for you with the manufacturer, Extang, that the Trifecta 2.0 WILL fit with the Multi-Pro tailgate on your 2021 GMC Sierra 1500 5-3/4 foot bed. The Trifecta 2.0 will fit with that tailgate, but there are different versions depending on if…

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Answer 3

Tonneau covers like the Extang Trifecta 2.0 Soft Tonneau Cover #EX92456 will not get damaged if taken through a car wash. They were designed to withstand carwashes easily. This is also a confirmed fit for your 2019 GMC Sierra 1500 with a 5-3/4 foot…

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Answer 4

I do have a solution for you, but we do not recommend using vehicle tires on a trailer. Trailer tires are built with stronger sidewalls to help resist the load that is put on them, while vehicle tires are made for a more smooth ride. Also, we do not…

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Answer 5

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.

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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…

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Answer 7

Load range B trailer tires are going to have a lower capacity than C load range tires. Basically that, psi rating, and the ply rating are the only differences. A higher load range tire would last a little longer than lower load ranges of the same…

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Answer 8

A 2023 Chevy Silverado 1500 will need to have 4WD and a two-speed transfer case, which will need to be placed in neutral, in order to safely flat tow. Your owner's manual will have a list of instructions to follow to switch your transfer case…

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Answer 9

The three most common lug stud sizes for a trailer are 1/2"-20, 9/16"-18, and 5/8"-18. In order to make sure you get the correct lug nuts you need to measure the lug studs on the trailer now as we have no way to look this up for…

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Answer 10

The two sizes you mentioned are pretty similar and fit many of the same 15 inch wheels. The 205/75-15 fits rim widths of 5 inch to 6-1/2 inch whereas the 225/75-15 fits widths that are 5 inch to 6 inch. The 205 is 27.1 inches tall and the 225 is 28.4…

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Answer 11

Good morning, Cliff. As of today (3/27/24) we are expecting the #KE33JR tire/wheel combo to be in stock in about 2 weeks. Hopefully this means we can take our own pictures and put them on the site within maybe about 3-4 weeks from now. What I can…

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Answer 12

I can end this debate for you real fast! Trailer tires, which will have an ST in front of the size, should always be inflated to the maximum psi indicated on the tire. Trailer tires usually do not have a recommended and maximum psi indication so I am…

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What is the Speed Rating for Kenda KR25 ST145R12 Radial Trailer Tire

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