ST175/80R13 Trailer Tires

ST175/80R13 is the standard 13-inch trailer tire, found on small utility trailers, jet ski and personal watercraft trailers, pop-up campers and light boat trailers. It is also written as 175/80R13, 175/80D13 or 175/80-13, and measures about 24 inches tall and 7 inches wide. The ST prefix means Special Trailer: a stiffer sidewall built for towing, not for a car.

We carry it in load range C (6-ply, about 1,360 lbs per tire) in both radial (R) and bias-ply (D) construction. Match the load range on your current sidewall or the capacity sticker on your trailer, and never go lower. Every order ships from the U.S. with tracking.

Common questions

Will a 175/80R13 fit my 13-inch trailer wheel?
Yes, as long as the wheel is 13 inches in diameter and 4 to 5 inches wide. Most 13-inch trailer wheels are 13x4.5 with a 5 on 4.5 bolt pattern.

Radial or bias?
Radial runs cooler on the highway and lasts longer. Bias is stiffer and costs less, which suits short trips and utility use. Keep both tires on an axle the same type.

Do you sell it mounted?
Yes. See our ST175/80R13 tire and wheel assemblies on galvanized, white spoke and modular wheels, mounted, balanced and ready to bolt on.