So what exactly does all of the letters and numbers on tire sidewalls mean? These markings include plenty of important information such as size, brand, model, and the Department of Transportation safety markings. The safety markings include maximum tire pressure, load, and speed ratings. All tires in the United States must meet specific minimum design and safety standards. Some other common markings include class, width, aspect ratio, speed rating, radial construction, and wheel diameter.

The three markings that you are probably most familiar with are width, aspect ratio, and wheel diameter. The following is an example of these markings respectively: 205/40/17. The maximum tire pressure represents the maximum amount of pressure a tire can safely hold while in operation. This should not be confused with the recommended tire pressure for your vehicle. The recommended tire pressure is vehicle specific and is not marked on the tire.

For additional information or to order new tires for your vehicle, contact Withnell Dodge Ram in Salem, OR serving McMinnville.

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