Where to Find Tire Size Specifications?
1 Answers
The tire size specifications are printed on the sidewall of the tire. For example, 205/55R16 indicates a tread width of 205 millimeters, an aspect ratio of 55, and compatibility with 16-inch rims. The aspect ratio is straightforward to understand: 55 means the sidewall height is 55% of the tread width. The sidewall is the part between the rim and the ground when viewed from the side. A higher aspect ratio means a thicker sidewall, which increases the distance between the rim and the ground. Here's an explanation of the numbers and letters in a tire model, using 225/60R17 99H as an example: 1. 225: Represents the section width, simply the width of the tire tread. 2. 60: Represents the aspect ratio, indicating the height of the tire sidewall. 3. R: Stands for the tire type code, with R denoting a radial tire. 4. 17: Indicates the rim diameter, meaning the tire fits a 17-inch rim. 5. 99: Represents the load index, the maximum weight the tire can bear. 99 corresponds to a maximum load of 775 kg. 6. H: Indicates the speed rating, the maximum speed the tire can handle. H means the tire can withstand speeds up to 210 km/h.