Tires & Tubes

Why Trailer Tires and Tubes Are Mission-Critical

When it comes to towing, the tires beneath your trailer are among the most important — and most overlooked — safety components in the entire setup. Trailer tires are not interchangeable with passenger car or light truck tires. They are purpose-built to handle the unique stresses of a free-rolling axle, carrying heavy static loads, and resisting the lateral sway that builds at highway speeds. Whether you're hauling a boat, livestock, utility equipment, or cargo, selecting the right trailer tire is a matter of both safety and long-term cost.

ST vs. LT: Understanding Tire Designations

You'll encounter two common designations when shopping trailer tires: ST (Special Trailer) and LT (Light Truck). ST-rated tires feature thicker, reinforced sidewalls specifically engineered to handle heavy loads and resist excessive flexing, which helps prevent instability and premature wear during towing. LT tires, by contrast, are designed for the steering and traction demands of trucks and SUVs — their softer sidewalls can flex under trailer loads in ways that compromise safety. For most trailering applications, ST-rated tires are the appropriate choice.

Radial vs. Bias-Ply Construction

Trailer tires come in two fundamental constructions. Radial tires feature steel belts that run perpendicular to the direction of travel, offering better heat dissipation, longer tread life, and superior stability at highway speeds. Bias-ply tires are built with crisscrossed layers of rubber and nylon, giving them excellent strength for heavy loads and rough terrain — making them a solid choice for off-road, agricultural, or slow-speed utility applications. For long-haul or high-speed towing, radial construction is generally preferred.

The Role of Inner Tubes

Most modern trailer tires are tubeless, but many smaller utility trailers, older designs, and certain specialty applications still rely on inner tubes. A quality inner tube maintains consistent air pressure, helps guard against flats, and can extend the service life of the tire itself. When shopping for tubes, always match the tube size to your tire's sidewall markings, and pay attention to valve stem type and material — butyl rubber tubes offer excellent air retention, while the valve design affects ease of inflation and compatibility with your wheels.

Key Shopping Considerations

• Load range: Match your tire's load rating to your trailer's Gross Vehicle Weight Rating (GVWR). Common load ranges are C through G, with higher letters indicating greater capacity.
• Tire size: Always reference your trailer's owner's manual or certification label for the correct size specification.
• Speed rating: ST tires carry specific maximum speed ratings — never exceed them, especially under load.
• Inflation: Underinflation is a leading cause of trailer tire failure. Check pressure before every significant haul.

Top Brands in Trailer Tires & Tubes

Firestone brings over a century of tire-making expertise to the trailering segment. Backed by Bridgestone engineering, Firestone's trailer tire lineup — including products like the FT409 — combines proven tread designs with durable casings built for long-haul performance, even wear, and SmartWay®-verified fuel efficiency. Firestone also offers a broad range of inner tubes compatible with trailer, utility, and specialty tire applications.

Continental is a globally recognized tire innovator with a deep commercial and trailer tire portfolio. Continental's trailer tires are engineered for high mileage, low rolling resistance, and excellent wet-surface traction — qualities that translate directly to safer, more economical towing. Their commitment to retreadability also makes Continental a smart long-term value for serious trailer operators.