What Is the Average Semi-Truck Tire Size?

Today, semi-trucks, also known as tractor-trailers or eighteen wheelers, are the backbone of the transportation industry in North America. Semi-trucks carry goods and materials long distances to their destinations, and it’s important that they have reliable tires that can handle the rigorous demands of long trips over unpredictable terrain. That’s why it’s important to know what the average semi-truck tire size is.

The average size of a semi-truck tire is 11R22.5, which translates to 11 inches in rim diameter and 22.5 inches in overall tire diameter. This tire size is considered a “lo-pro” or low profile tire, meaning it has a relatively shallow but wide tread pattern for improved handling and steering accuracy. It also offers good traction on wet surfaces due to its large contact patch with the ground.

The 11R22.5 size is just one of many sizes that semi-trucks can be outfitted with; other common sizes include 11R24.5 and 12R22.5. Depending on the specific make and model of the truck, other sizes may be available as well; for example, some trucks may use 315/80R22.5 tires for increased load capacity.

No matter what size tires you choose for your truck, they should always be properly inflated before hitting the road to ensure maximum performance and safety. Overinflated tires can cause premature wear while underinflated tires can lead to poor handling and increased fuel consumption.

Conclusion:

In conclusion, the average semi-truck tire size is 11R22.5 which is a lo-pro or low profile tire that offers good traction on wet surfaces due to its large contact patch with the ground. Other common sizes include 11R24.5 but depending on the truck model other sizes may be available as well such as 315/80R22.

Regardless of what size you choose for your truck, always ensure it is properly inflated before hitting the road for maximum performance and safety!

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Karen Watkins