Install: MaxxTow Tow Strap Loop for 2" Trailer Hitches on a 2014 Ram 2500 Video

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…

There are two tire options available for the size tire you identified, ST145/R12, both are the Kenda Karrier brand. The first option is a load range E, #AM10140, this is has a ply rating of 10 an a 1,520-lb max load at 80 psi. We also have the…

Yes, the 4.80-12 tire size and the 5.30-12 tire size are both designed to fit the same rim width of 4 inches. So the tire you would want would be the part #AM10068 to fit your current trailer rim. This tire is a Load Range D tire with a capacity of…

All trailer tires must always be inflated to the specified maximum cold psi pressure as noted on the tire sidewall. Tires should never be under- or over-inflated at any time as this can lead to heat build up, uneven tread wear, loss of weight…

We can help you select new 5.30-12 tires or this size tire pre-mounted on a 4-lug wheel if you prefer. All the 5.30-12 tires we offer are bias ply types; no radial tires are offered in this size. I suggest you use a Load Range D tire, part #AM10068…

The 4.80-12 tires you have on your jet ski trailer are 20.7" diameter x 4.9" wide. The best option we have to go with a larger width is a 5.30-12 tire which measures 21.9" diameter x 5.5" wide. For a 5.30x12 tire the highest rated…

A 5.30-12 Load Range C tire has a load capacity of 1045 lbs each or 2090 lbs per axle which is more than sufficient for a trailer/boat combination that weighs 1850 lbs. Excessive heat build up is the number one cause of premature tire wear and…

Trailer tires are made with a thicker side wall than passenger car tires. Because of the thicker side wall they generate more heat. If they are under inflated and/or overloaded, that generates even more heat and can cause the tire to fail. Always…

Thank you for the photo of your trailer tire which does show some serious dry rot. You are smart to get new tires before your trip. We offer both bias ply tires only and tire-with-wheel products in your 5.30-12 size; both can be seen on the linked…

Most trailer tires are rated for speeds up to 65-mph, despite some roads having posted limits up to 80-mph as you note. Of course, towing a trailer at 80-mph is not recommended. Generally a radial trailer tire will give you better handling than a…

For a replacement tire for the 4.80-12 tire size that will be larger in diameter the 5.30-12 size will be 1-1/2 inches taller. It will fit the same rim and would be the tallest option. For that you could go with the #AM10068 which I attached a review…

The most common tire size people go to from the 4.80-12 is the 5.30-12 like the Taskmaster 5.30R12 Radial Trailer Tire #TT53012C. This will give you a width increase of 1/2 inch and a diameter increase of 1.4 inches. This tire also has a speed rating…