Ultra STR

These tires are intended for trailer axles only, and can withstand long miles of in-line hauling. They're not meant for steering or drive axle applications, and their design offers years of reliable service in trailer applications. Choose from favorites like Gladiator, Carlisle and Goodyear trailer tires.

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This product is not covered by a manufacturer’s treadlife warranty.

The maximum carrying capacity for a tire determined by the manufacturer (Single wheel applications / Dual wheel applications).

Maximum speed capability to safely carry a load for an extended period of time.

The maximum load carrying strength at the specified inflation pressure, also known as ply rating.

The side of the tire between the tread and rim, with cosmetic branding as well as information about the tire including manufacturer, model, size, etc.

Measured in 32nds of an inch, this metric shows how much tread life is left on a tire, with the tire's traction & stopping capabilities greatly diminished at 4/32nds and less. Tire manufacturers include "tire wear bars" at 2/32nds to indicate when your tire is worn out.

The highest inflation pressure (measured in pounds of force per square inch, PSI) the tire is designed to contain, and should only be used when called for by the vehicle placard.

An identifier of a particular tire line and size combination assigned by the tire manufacturer.

Tread design (or tread pattern) can affect handling, traction & noise for different driving styles & road conditions.

Shipping weight (lbs)

The measurement of width from a tires inner sidewall to the outer sidewall.

The diameter of a tire that is inflated without any load applied.