How to Determine How Much Tire Capacity a Trailer Tire Needs  

You can add larger wheels and tires to a trailer as long as you have enough room for the larger size. The main clearance issues we find when putting larger tires and wheels on a trailer is from the top of the tire to the fender and from the inside…

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…

Your math is correct in your trailer weight load example. If a fully-loaded tandem axle trailer weighs 4000-lbs then each of the 4 tires will bear 1/4th of that load, or 1000-lbs. In this case a tire rated for 1300-lbs would provide a good safety…

Your calculations are correct, your tire capacity is 7,040 lbs. You always want to go with the lowest rated component in your towing setup as your overall towing capacity. So if you check your trailers overall capacity and it is lower than this…

In your situation changing to a higher load range tire will not affect the odds of a puncture (since the ply rating does not actually refer to layers of material in the tire but rather its strength). Moving to a higher load range DOES offer the…

A example of a conventional steel trailer wheel is Dexstar #AM20766. Modular wheels are simply trailer wheels that feature cosmetically-appealing holes rather than spokes or a solid inner surface. A good example of a modular trailer wheel would be…

I can understand your concern with rust in a salt water environment. I recommend the Curt Cargo Carrier for 2" Hitches - Aluminum part #C18113 which is an aluminum cargo carrier that measures 21-1/8" long x 47-11/16" wide x 3-3/4"…

Karrier and Loadstar are two different brand names used by Kenda. There's no difference in quality or function between the two brand names. For a ST175/80-13 Radial trailer tire in load range D, I'd recommend part #AM10210 if you're…

The closest tire size we have available that will allow you to use your existing 13 inch wheels is a ST175/80R13 tire like the Kenda Karrier #AM10210. This radial ply tire has a maximum load capacity of 1,610 pounds at 65 psi and a maximum speed…

The two trailer tire sizes you referenced, ST155/80-13 and ST175/80-13, differ in both width and overall diameter. The narrower 155 tire is 155mm (6.1-inches) wide and has an overall diameter of 22.7-inches. The wider 175 tire is 175mm (6.9-inches)…

A 5.30 X 12C tire is going to be your best replacement. If you need the 4 on 4 inch bolt pattern #AM30780 is a good option, or #AM30820 for the 5 on 4-1/2 inch bolt pattern. These both have the wheel and tire included, which you'll need, since…

To ensure you get the correct hub for your 1997 Scamper 23L pop up camper you are going to need to pull one of your hubs off to determine what size spindle you have. You will need to measure the diameter of the spindle with a Digital Caliper…