Trailer Tires & Wheels

49th Street Tires Clearwater

Looking for reliable trailer tires in Clearwater? At 49th Street Tires Clearwater, we carry a wide selection of high-quality trailer tires for all types of trailers. Whether you need boat trailer tires, utility trailer tires, camper trailer tires, horse trailer tires, or RV trailer tires, we have the right fit for your towing needs.

Our inventory includes top trailer tire brands designed for durability, stability, and performance on the road. From long-distance hauls to weekend trips, our expert team will help you find the perfect tires to keep your trailer safe and road-ready.

USED TRAILER TIRES

High-Quality Used Trailer Tires
Includes a 30-day warranty for peace of mind.

NEW TRAILER TIRES

Looking for durable trailer wheels? We offer steel and aluminum trailer wheels built to handle heavy loads and tough roads

TRAILER WHEELS

Looking for durable trailer wheels? We offer steel and aluminum trailer wheels built to handle heavy loads and tough roads

When Should You Replace Your Trailer Tires?

Keeping your trailer tires in good condition is essential for safety and performance. Here are key signs it might be time for a replacement:

Tread Wear: If the tread depth is below the manufacturer’s recommended level, your tires won’t grip the road properly. Worn-out treads mean it's time for new tires.
Cracks or Damage: Regular visual checks are important. If you notice cracks, bulges, or other visible damage, replace the tire immediately to reduce the risk of blowouts or failures on the road.
Tire Age: Even if they appear in good shape, trailer tires typically need replacing every 5 to 7 years. Rubber degrades over time, even when not in use, so don’t rely on appearance alone.

Trailer Tire Load Range & Ply Rating

ST (Special Trailer) & Commercial Trailer Tires ONLY

Trailer Tire Load Range and Ply Rating Explained

Trailer tire load range and ply rating (PR) describe how much weight a trailer tire can safely carry and the air pressure required to support that load. These ratings apply to ST (Special Trailer) and commercial trailer tires, not passenger or light truck tires.

What Is Trailer Tire Load Range?

Trailer tire load range identifies the maximum load capacity of a trailer tire at a specific maximum cold inflation pressure. The load range is shown as a letter on the tire sidewall, such as B, C, D, E, F, G, H, J, or L.

Higher load range letters mean:

Higher weight capacity
Higher maximum PSI
Stronger tire construction

Trailer tires are designed to operate at their maximum rated PSI, which is molded on the tire sidewall.

What Is Ply Rating (PR)?

Ply rating (PR) is a standardized strength rating, not the actual number of plies inside a modern trailer tire. It represents the tire’s ability to carry weight and resist heat and sidewall flex.

Examples:

Load Range C = 6 Ply Rating
Load Range D = 8 Ply Rating
Load Range E = 10 Ply Rating

A higher ply rating means greater load-carrying strength and durability.

Why Load Range Matters for Trailer Tires

Using the correct trailer tire load range helps:

Prevent tire blowouts
Reduce heat buildup
Improve trailer stability
Extend tire lifespan
Maintain DOT and FMCSA compliance

Most trailer tire failures are caused by under-rated load range or incorrect inflation pressure.

ST Trailer Tires vs Passenger and LT Tires

Load range and ply rating standards apply only to trailer tires marked ST or commercial trailer tires.
Passenger (SL / XL) and Light Truck (LT) tires are not designed for trailer use and should not be used on trailers.

How to Choose the Correct Trailer Tire Load Range

To select the correct trailer tire:

Find the trailer’s Gross Axle Weight Rating (GAWR)
Divide the axle weight by the number of tires
Choose a trailer tire with a load range that exceeds the required load per tire
Inflate the tire to the maximum cold PSI on the sidewall
Confirm wheels and valve stems are rated for the tire’s PSI

Key Takeaway

Trailer tire load range and ply rating determine how much weight a trailer tire can safely carry and the air pressure required for safe operation. Choosing the correct load range improves safety, towing stability, and tire longevity. Always use ST-rated trailer tires and follow the tire manufacturer’s sidewall specifications.