Trailer King Ultra STR Tires

Product Info

Ultra STR

Trailer King Ultra STR tires are built for heavy-duty trailer applications where load capacity and trailer-specific construction matter most. At Gunnell's Tire & Service Center, this model is a focused highway option for towables that need dependable support on paved roads, with an all-steel highway rib design, a five-rib tread layout, and a four-groove pattern aimed at stable towing and even wear.

Current catalog fitments are limited to two 16-inch sizes: 235/80-16 and 235/85-16. Both listed sizes are Load Range G and speed rated L, so it’s important to match your trailer’s OEM requirements, wheel specs, and clearance before ordering.

If you’re replacing tires on a travel trailer, fifth wheel, or cargo trailer that spends most of its time on the highway, the Ultra STR is designed with that use case in mind. Gunnell's Tire & Service Center can help you compare the available sizes and schedule service when you’re ready.

Tire Sizes