205 55 16的意思

"205 55 16" is a tire size designation, specifically a tire profile for vehicles. Here's what each number and letter mean:

• 205: This is the tire's section width, which is the width of the tire in millimeters from one sidewall to the other when mounted and measured on a specified width wheel. In this case, the tire is 205 millimeters wide.

• 55: This is the aspect ratio, which is the ratio of the tire's sidewall height to its section width. In this case, the sidewall height is 55% of 205 millimeters. So, the sidewall height is approximately 113.25 millimeters (205 x 0.55 = 113.25).

• 16: This is the wheel diameter, which is the diameter of the wheel in inches that the tire is designed to fit. In this case, the tire is designed to fit a 16-inch wheel.

Together, these numbers indicate a tire that is 205 millimeters wide, has a sidewall height that is 55% of the width, and is intended for a wheel with a diameter of 16 inches.

This tire size is commonly used on passenger cars and SUVs.