I agree with what others have said above. I had a lot of trouble with boat trailer tires until I went with radial trailer tires. Since then I've not had any trouble and I probably average about a 1,000 miles a month on my boat trailer, mostly interstate driving 70+ mph. Bias ply tires just can't take the heat and speed that radial tires can. The ones I've been buying aren't even name brand, I think they are called gladiators, I've had 3 sets with no problems. I get them at Southern Tire Mart here, I think you may have them in Mississippi as well. Very reasonable price too. Name:  IMG_20180624_144200192.jpg
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