What Do Car Tire Size Numbers Mean?

Most car owners will need to change their vehicle's tires at some point in its life. Shopping for tires requires an understanding of the code used to express tire sizes.

An example tire size is P185/75 R14 98 W. There are six elements to this code. First is a letter that indicates the tire's class. The next three-digit number that is the tire's tread width. The second number is the tire's aspect ratio. A number after the letter R is the wheel diameter. These are the essential size measurements. The next number is the load the tire is designed to support, and a letter after it is the tire's speed rating.

At West End Nissan, we can help you with choosing a new set of tires or repairing a flat. Visit our service center in Edmonton, AB, anytime.

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