Gladiator QR15-STB

Trailer Bias

Rims Not Included

Availability

In Stock

Starting at

$38.00

Lightning Savings

Was $47.5

Installation available

easy test score

8.0 Excellent

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The Gladiator QR15-STB tire is a ST, or "Special Trailer" tire for boat trailers, campers or utility trailer applications. The special trailer tire construction, and materials used, means the Gladiator QR15-STB tire can carry heavy loads and handle the rigors of overloading or off-road towing conditions. ST tires can only be used on trailers because the sides of the tires are heavily reinforced and are too rigid for the suspension of a truck, SUV or car. Apart from the strength of the tire, this tire has wide open circumferential grooves to quickly and efficiently evacuate water from under the tire for very good grip and tracking on wet or flooding roads.

For nearly 10 years, Giga Tires has served the online tire community. With over 1 million tires sold, 24K+ 5-star reviews, and thousands of tires at your fingertips at unbeatable prices, see for yourself why customers choose Giga as their online tire shop.

1+ Million Tires

Sold Online

Over 24K 5-star

Customer Reviews

10+ Years

In Business

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Get tires to your door

Local installation

Install at local service centers

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45 day returns

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About the Manufacturer:

Launched in 1982 as a flagship brand of American Pacific Industries (API), Gladiator Tires has built a global reputation for manufacturing indestructible rubber for off-road, commercial, and agricultural applications. Operating in over 80 countries, the brand focuses on engineered toughness, delivering superior load-carrying capacity and longevity for light trucks, SUVs, and specialty equipment.

Gladiator actively proves its extreme durability on the world’s most punishing terrains by sponsoring professional off-road racing teams and events in grueling series like SCORE International.

Why Drivers Rely on Gladiator:

Extreme Durability: Reinforced sidewalls and heavy-duty rubber compounds designed specifically to handle heavy payloads, towing, and commercial hauling.

Off-Road Pedigree: Aggressive, race-proven traction tested in brutal environments through their SCORE International partnerships.

Versatile Strength: A comprehensive lineup covering everything from aggressive mud-terrain light trucks to highly stable RV, boat, and utility trailers.