How To Check Your Tires for Wear

With summer now upon us, many of us will begin loading up our travel trailers and hitting the road with summertime fun as our destination.

But before you head out, be sure you're traveling safely by not overloading your trailer and inspecting your trailer tires for signs of damage and weathering. Towing with tires that are overly worn or cracked can lead to potential blowouts, putting you and your loved ones at risk.

Checking Your Tires for Wear

There are many conditions that dictate the lifespan of your trailer tires, including how much you use your trailer during the year, parking your trailer for 6 months with little or no rotation, and the amount of ozone exposure.

Fortunately, you can identify potential hazards simply by inspecting your tires before use. A good place to start is by checking your tires for cracking in the area of the sidewall. This is normal and is a naturally occurring condition resulting from exposure to heat and sunlight.

SIDEWALL CRACKING: Caused by overexposure to the sun or other chemicals. Tires that are overexposed or that sit for long periods of time start to develop cracks in the sidewall where the rubber has dried out and is now separating.

FEATHERED WEAR: Caused by aggressive turning, suspension related issues, alignment problems, or misaligned wheels. Tread displays choppy wear patterns, of variable height and stages of wear displayed in a feather pattern.

CAMBER WEAR: Camber is the tilting of the wheel during operation, measured in degrees.  If the Camber is out of line , it will cause the tire to wear more quickly on one side of the tread. This irregular wear will ultimately shorten the life of your tire.

FULL TREAD SEPARATION:  Caused by continual operation of the tire after a separation has occurred in the tread or between plies. This issue is aggravated by over heating and loss of adhesion, and is the end result of operating a tire with possible ply or belt issues.

Measuring Tread Depth

Tread depth is a vertical measurement between the top of the tread rubber to the bottom of the tire’s deepest grooves. It is an indication of whether the tire can safely remain in service and maintain sufficient tracking and handling performance.  You can have some idea if the tires have neared the end of their life by using a commonly known practice of using  a U.S. Lincoln penny to confirm the tire’s tread depth.  If Lincoln’s entire head is visible, then the tire is considered legally worn out in most instances.

When in Doubt, Ask a Professional

If upon inspection you see signs of any of the above issues, you should have your trailer tires inspected by your local tire specialist. This is the best safety practice and will result in knowing that you are driving on safe, dependable tires. You should also be aware of any previous tire repairs or any visual signs of tire abuse (sidewall cuts or scuffs, etc.), especially when purchasing a trailer from another owner. When in doubt, we always recommend you consult your tire professional!

Making the Right Choice when Replacing

Purchasing trailer tires is a major expense, but it also speaks to your safety and comfort while traveling. Greenball understands and knows the importance of theses issues and provides quality tires that assure you peace of mind.

Greenball’s Tow-Master “All Steel Construction” special trailer tire is designed to do just that. This ultra-premium trailer tire is engineered to support heavier loads at higher speeds, as well as resist irregular wear and trailer sway. It’s improved durability makes it the perfect choice for a wide range of trailers.   With a powerful construction and research-based design, the Tow-Master ASC remains in a class of its own.

  • Radial Design for a stable and cooler running tire.
  • Tuff casing gives tire excellent resistance against punctures and hydroplaning.
  • Perfect for local and nationwide hauling applications.
  • High quality steel belts help distribute weight for a smoother ride.
  • Engineered to meet the demands of today’s heavier vehicles.

The Tow-Master ASC is offered in a ST235/85R16 and a ST225/75R15, 15” shown on the right.


THF1522575F ST225/75R15 12PR 12 28.3 8.8 61 46.2 95 121/117M 3195/2835
THF1623585G ST235/85R16 14PR 11 31.7 9.3 6.51 57 110 129/125L 4080/3640


When you're out on the open highway between point A and B, the last thing you want to be thinking about is your tire overheating.  Without sacrificing performance or fuel consumption, the

Tow-Master SS is the ideal selection for drivers who haul heavier loads, in high heat conditions. The revised rubber compound greatly improves heat dissipation, which results in a cooler-running tire.  The Tow-Master SS is also available is a wider range of sizes.

  • Specifically created to withstand the rigorous pressure from high heat conditions.
  • Inner liner and belt edge package have been re-engineered to ensure proper air pressure, easier maintenance and assured load capacity.
  • Advanced siping on tires for maximum traction and stability.
  • Wider contact patch means you're getting more tire on the road, and better turning responsiveness.
  • Steel belted Radial design gives tire flatter profile and less heat build up.
  • Offered in 10 different sizes, 13”-16” rim diameters.

The Tow-Master SS is available in the following sizes:

TSS13175C ST175/80R13 LRC 9 24 6.8 5 16.4 50 M 1360
TSS14205C ST205/75R14 LRC 9 26 7.8 5.5 21.6 50 M 1750
TSS14215C ST215/75R14 LRC 10 26.7 8.3 6 22.8 50 M 1870
TSS15205C ST205/75R15 LRC 9 27.1 7.8 5.5 22.9 50 M 1820
TSS15205D ST205/75R15 LRD 9 27.1 7.8 5.5 25.6 65 M 2150
TSS15225D ST225/75R15 LRD 10 28 8.7 6 28 65 M 2540
TSS15225E ST225/75R15 LRE 10 28.4 8.7 6 28.9 80 M 2830
TSS15225F ST225/75R15 LRF 12 28.4 8.7 6 28.9 95 M 3137
TSS16235E ST235/80R16 LRE 10 31.4 9.8 6.5 36.6 80 M 3500
TSS16235F ST235/85R16 LRF 12 31.6 9.6 6.5 41.5 90 M 3858/3520

To purchase the Tow-Master ASC or Tow-Master SS, please visit your local tire dealer.  Or call 1-800-946-9412 for more information.