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Wheel Talk

Enclosed Trailer Tire Safety

Example of a Tire Placard found on Diamond-Cargo's enclosed cargo trailers.
Enclosed Trailer Tire Placard

Undoubtedly, most of you have experienced a tire blowout. Perhaps your windshield was damaged by a semi's rubber debris. Or maybe you've rescued a stranded senior from a flat. As a result, you know the costly and potentially dangerous ramifications of tire failure. For the purpose of preventing similar situations, I'll share general enclosed trailer tire safety tips.

They're Special

To begin with, let's identify the style of tires designated for trailers. Collectively known as Special Trailer (ST), they are constructed as either bias or radial and are made for trailer axle positions only. Their assembly varies substantially from car tires; therefore, it is crucial to choose the correct tire for towing. Whereas, a strong sidewall scheme allows for heavier loads, they have a limit at higher speeds to minimize sway. While some ST tires rate up to 81 mph, the suggested speed rating is only 65mph. For these reasons, use ST tires on enclosed trailers to avoid a...

Failure to Maintain

Contrarily to consumer beliefs, inferior products are not the primary cause of trailer tire issues. In fact, aside from recalls, the main failures are owner related. With this in mind, the leading causes of tire malfunctions are below.

  • Overloaded Tires

  • Over/Under Inflation

  • Improper Weight Distribution

  • Excessive Speeding

Sometimes, however, there are factors we can't control. Highway hazards such as potholes and rogue nails are among the most noted. Plus, those heavier loads eventually leave their impression. Even then, the tread may show little wear. So, it's important to realize oxidation of rubber causes deterioration. That way, the tires get changed before disaster strikes.

Keep 'em Rollin' Rollin' Rollin'

To be sure to get the most out of your ST tires, follow the directions in your owner's manual. Coupled with those instructions and good sense, accidents become less likely. Also, pay close attention to the information on the trailer's Tire Placard. As can be seen in the cover photo, you will find the trailer's tire size, Gross Weight Vehicle Rating (GWVR), and recommended cold inflation settings. Furthermore, I've included additional industry standards and tips that will help swerve around flats and blowouts.

  • Sustain the cited maximum PSI"s (Pounds per Square Inch)

  • Avoid overloading

  • Never exceed the GVWR

  • Check the air pressure regularly with a suitable gauge

Apart from that list, it's a good idea to purchase a spare. Roger at Diamond-Cargo can plug you in with one for a great price. For tire questions or any enclosed trailer inquiries, call (877)707-4264 today!