Max Highway Speed Rating for 4.80-12 Tires  

What you found is a DOT number and not a speed rating. I was able to figure out which tire you have and it's a Loadstar 4.80-12 that has a 65 mph speed rating. In this size we have a tire that can go 81 mph as part #TT48012C.

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…

The Dexter 8-427 hub is no longer available. Even looking through Dexter's site the only references to it are replacement bearings. You can use a wheel with a larger pilot hole as long as the wheel attaches to the hub using lug nuts and not…

You are definitely going to need radial tires for highway speeds and the best option is the Taskmaster 4.80R12 Radial Trailer Tire #TT48012C. Radial trailer tires are constructed in a manner so they have cords which run at 90 degrees to the…

We can help you with either new disc brakes or with replacement parts for your existing disc brake setup on your Ranger boat trailer. Either way you will want to confirm the axle rating of the single or tandem axles on the trailer since complete…

All of the trailer tires we carry, unless otherwise noted on the trailer tire itself, are rated for 65 miles per hour. Trailer tires should always be inflated to the maximum psi as indicated on the tire for best performance and longest life. I have…

The closest radial tire size I would have to replace the 4.80-12 bias tire size is the Kenda Karrier S-Trail ST145R12 Radial Trailer Tire #AM10130. The 4.80-12 bias tire is 20.7 inches tall and 4.9 inches wide. The 145R12 radial tire is 21.3 inches…

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…

The main differences between the two trailer tire sizes you referenced are the outer diameter for the two and the capacities available. For the 4.80-12 tires they are 20.5 inches in overall diameter and have 785 and 990 lb capacities available. For…

Your 4.80-12 tire has an overall diameter of 20.5 inches, a 145/80-12 tire will have an overall diameter of 21.3 inches. The fender clearance difference you would see with the taller size would be .4 of an inch. If you can fit an additional .4 of an…

The Kenda K353 Bias Trailer Tire - 5.30-12 - Load Range C #AM10066 has a speed rating of 65 mph and like you mentioned a max load capacity of 1,045 lbs at 80 psi. However you should make sure that the combined maximum load rating is higher than the…

For bunk style guide-ons such as #CE27600 the bunk board and boat should only barely touch if at all. There isn't a hard and fast rule that says it should be this many inches. But since guide-ons are not meant to support weight like a regular…