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WHAT'S MY TIRE SIZE?
What the Numbers On Your Tire Mean Here’s an explanation of those very important numbers and letters, using the P225/60R16 tire as an example: TIRE SYMBOLS
|P||This means the tire is designed for Passenger Cars. Other common letters seen here include LT (Light Truck), ST (Special Trailer), and T (Temporary, for spare tires).|
|225||This is the Width of the tire. It measures the widest point of the tire (sidewall to sidewall, about halfway down) in millimeters. It does not measure the width of the tread.|
|60||This is the Aspect Ratio of the tire. It measures the Sidewall Height as a percentage of the total width of the tire.|
|R||This means it’s a Radial Tire. The internal design of the tire design has cord plies — which reinforce the tire — arranged at 90 degrees to the direction of travel, or "radially" (from the center of the tire). This is the standard design for almost all automotive tires today.|
|16||This is the Wheel Diameter. It measures (in inches) the diameter of the wheel that the tires are designed to fit.|
If you have more questions, please consult the friendly professionals at your local Tires Plus or submit a question here.