Tire Knowledge

If you were to attempt to calculate the overall diameter of a metric tire in inches on your own, you would need to consider tire width, wheel diameter, and sidewall height or aspect ratio.

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The impact that your tire experiences from hitting the foreign object pinches the tire against the rim, which damages the inner liner, forcing air to leak into the body of the tire and causing the bubble to form.

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Nitrogen-filled tires could help you maximize tire air pressure, reduce tire corrosion and extend tire life.

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Understanding the differences between Passenger and Light Truck tires will be critical if you are considering a switch from the original tire type for your vehicle.

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The numbers and letters at the end of the sequence that you see on your sidewall correspond your tire load index and the tire speed rating.

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The tire industry standard for tread depth in the United States is measured in one thirty-second of an inch (1/32") increments

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Almost everything you need to know about your tires is molded into the sidewall and coded according to federal requirements, including the specific week and year when a tire was made.

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Check out the various tire types detailed below, and see if you can place yourself into one of the categories based on your vehicle, your weather and your everyday use.

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Understanding how to decipher all of the numbers and letters on a tire’s sidewall plays an important part in making sure you choose the right tires for your vehicle. Let tireamerica.com take the guess work out of it for you.

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There are letters on the tire’s sidewall that correspond with “tire load range,” historically known as the “tire ply rating.” Load range and ply rating specifically refer to how much load your tire can support at maximum allowable air pressure.

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