The numbers on tires represent important information about the tires type, width, aspect ratio, construction type, diameter, load index, and speed rating. Here is a breakdown of what each number means:

• Tire type: The first letter in the code tells you what class of tire it is. For example, "P" stands for "P-Metric Tire," which means you have a passenger vehicle.

• Tire width: The three-digit number following the letter is the tires width in millimeters measured from sidewall to sidewall.

• Aspect ratio: The forward slash separates the tire width number from the two-digit aspect ratio. The aspect ratio is the percentage ratio between the sidewall height and the width of the tire.

• Construction type: The letter "R" indicates radial construction.

• Wheel diameter: This two-digit number specifies wheel diameter in inches.

• Load index: Load index is a two or three-digit number following the two-digit wheel diameter number. It tells you how much weight the tire can safely support.

• Speed rating: Speed rating is the last letter in the tire code and indicates the top speed a tire is designed to ride.

Its important to note that tire numbers can change depending on the tires type and purpose. If youre unsure about what the numbers on your tires mean, its best to consult a tire professional for help.