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Mismatched Duals Spell Trouble for Commercial Truck Tires

Mismatched Duals Spell Trouble for Commercial Truck Tires

Managing the intricacies of commercial truck maintenance can pose quite a challenge, particularly when it comes to safeguarding the overall condition of your vehicle’s tires. One significant concern that frequently perplexes fleet managers and drivers is the matter of “mismatched dual tires.” This comprehensive guide is designed to illuminate the significance of harmonizing dual tires on commercial trucks, offering insights into common questions and presenting viable solutions.

Is It OK to Drive with Mismatched Tires?

Driving with mismatched tires, especially in a dual assembly commercial truck, is not recommended. Mismatched dual tires can lead to significant problems, affecting not only the performance of the truck but also its safety.

The Dangers of Mismatched Dual Tires

In a dual tire assembly, the load-carrying capacity is shared between two tires. When these tires are mismatched, it can disrupt the balance, leading to several issues:

Height and Circumference Discrepancies: 

If one tire is larger, it will endure more sidewall stress, while the smaller tire will suffer from increased tread wear. This imbalance can lead to premature tire failure.

  1. Inflation Differences: A variance as small as 15 psi can cause the better-inflated tire to bear an extra 500 pounds. This imbalance can lead to uneven wear and potential safety hazards.
  2. Tread Depth Variation: Tires with more than a 4/32” difference in tread depth can wear unevenly. The tire with deeper tread may wear out faster due to increased movement under load.
  3. Do Dually Tires Need to Match? Absolutely. Ensuring that both tires in a dual assembly match is crucial for maintaining the balance and safety of the vehicle. This includes having similar tread patterns, depths, and overall tire condition.

What Occurs When Using Two Different Sets of Tires? Exploring the Effects of Mismatched Dual Tires

Using two different sets of tires on a dual assembly can lead to uneven wear, potential handling issues, and increased strain on the vehicle’s suspension and drivetrain. This mismatch can also affect fuel efficiency and overall vehicle performance.

Why Check Between Your Dual Tires?

Regularly checking between dual tires is essential for identifying early signs of wear, damage, or inflation issues. This practice helps in maintaining tire health and ensuring safety on the road.

Maintaining Your Commercial Truck Tires

To combat the effects of mismatched dual tires, consider the following tips:

  • Consistency is Key: Use the same brand and model of tire with identical tread patterns and sizes. Adhere to the truck manufacturer’s recommendations for optimal compatibility.
  • Minimize Differences: If using different tires is unavoidable, keep the height difference under ¼”, the circumference difference less than ¾”, and the tread depth difference within 4/32”. Mount smaller tires on the inside, as outside tires tend to wear faster.

    Leveraging Professional Services

    For optimal tire management, consider services like STTC’s Commercial Truck Tire Services. Our OSHA-certified technicians specialize in selecting and mounting dual assembly tires, ensuring balanced and safe travel conditions. Our preventative maintenance plans include thorough inspections, and our live asset tracking helps fleet managers maintain an efficient tire inventory.

    Driving with mismatched dual tires is not advisable due to the numerous risks it poses. Ensuring that your commercial truck’s dual tires match in size, tread, and inflation is crucial for safe and efficient operation. Regular checks and professional maintenance services can greatly assist in managing these challenges effectively.

    For more information and expert assistance with your commercial truck tires, feel free to contact our team at STTC. We are dedicated to helping you maintain a balanced and safe fleet, every mile of the way.


Further Reading on Tire Retreading Insights

Further Reading on Commercial Truck Tires 101