Goodyear and Power King Replacement Trailer Tires

Tire Rack offers two lines of trailer tires, the Power King Towmax STR II and Goodyear's Marathon Radial. Both tires are similar in their exterior features. A rounded shoulder with an internal polyester cord body provides a smooth and stable ride. Circumferential grooves provide ample water evacuation. Constant and consistent contact with the road is achieved through the solid center rib and symmetric tread designs.  

The Goodyear comes with the assurance of their reputation for quality control, while Power King offers some expanded load rating options. The Power King also offers L speed rating that allows driving up to 75 mph without increasing tire pressure. You will find both are also radial constructed, as we do not offer bias ply options. We also work in modern tire sizing such as "ST205/75R15." You can convert classic sizes, e.g. 6.50-15, using this table.

Goodyear Marathon Radial
Goodyear Marathon Radial
Power King Towmax STR II
Power King Towmax STR II


Special purpose trailer tires aren't intended to be used on cars or light trucks and are not UTQG rated. Your trailer will be more stable and pull better on tires designed specifically for trailer use. Since trailer tires are constructed with heavier duty materials, they are tougher than typical passenger vehicle tires. This is a plus because trailer suspension systems are generally stiffer and less sophisticated than automotive suspension systems. For more information on a trailer tire's design, read "Trailer Tires vs. Passenger Vehicle Tires."

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