What Do the Letters on Tires Mean?

You may be in the market to get some new tires for your car or truck, and you are wondering what the letters and numbers on the tire signify. The numbers on the tire signify the width and height of the tires and what size wheel they will fit on. The letters have other meanings.

In front of the numbers like 215/75r15, you will see a P or an LT. P stands for passenger car while LT stands for a light truck. You will also see a speed rating letter of S, T, or Z. A Z is the highest speed rating. The R in between the numbers for the size indicates a radial tire. Some tires will have a designation of M+S. This means that the tire is a mud and snow tire. It can be driven in all weather conditions.

If you live in Ellisville, MO and have further tire questions, get in touch with our service center at Bo Beuckman Ford for all your tire needs.

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