If you don't match the wheel and tire size correctly, you can ruin both the tire and the wheel. At the very least, a poor fit will reduce the performance of the tire. If you have size 205 tires, you must learn to identify what rim size you need.
According to Custom Wheels Market website's wheel and tire sizing chart, 205 tires fit onto rim width's ranging from 5.5 inches to 7.5 inches. The best fit is obtained from choosing a wheel size in the middle of this range. To identify a more specific sizing, learn to read the numbers on the sidewall of your tire.
The number "205" refers to the tire's width in millimeters. This number is found on the sidewall of the tire along with several other numbers and letters. The width is the first three numbers in the series. The next two numbers, the aspect ratio, represent the height in terms of a percent of the width. If the number is 35, then the height of the tire is 35 percent of 205 or 72 millimeters
After the aspect ratio are a couple of letters that denote the speed rating and tire construction. The final numbers after the letters represent the wheel-rim width best suited to your tire.
Even though the width and height are expressed in millimeters, the number for the rim width is in inches.
