我車輪胎p的意思

"P" in tire size stands for "P-Metric," which is a standard used for passenger car tires in the United States and Canada. P-Metric tires are designed to have a lower load capacity than their European counterparts but are typically lighter and more fuel-efficient. The "P" designation was introduced in the 1970s to differentiate between tires designed for passenger cars and those used for light trucks.

Here's a breakdown of a typical P-Metric tire size:

• The first number represents the tire's width in millimeters. For example, "P225" means the tire is 225 millimeters wide.
• The second number is the aspect ratio, which is the ratio of the tire's section height to its width. A lower aspect ratio means a shorter and wider tire, while a higher aspect ratio results in a taller and narrower tire.
• The third number is the diameter of the wheel in inches that the tire is designed to fit. For example, "P225/60R16 95H" means the tire is designed for a 16-inch wheel.
• The "R" stands for radial construction, which is the most common type of tire construction.
• The "95" is the load index, which indicates the maximum weight the tire can support when properly inflated.
• The "H" is the speed rating, which indicates the maximum speed the tire is designed to carry a load.

If you have any specific questions about your tire size or need further clarification, feel free to ask!