How to Interpret the Size Corresponding to Car Inner Tube Models?
1 Answers
Automobile tire specification model parameters are expressed in millimeters for the section width and the percentage of the aspect ratio. Following these are: the tire type code, rim diameter (in inches), load index (code for allowable carrying mass), and allowable vehicle speed code. Here is an example to explain the meaning of the numbers and letters in a tire model: 225/60R17 99H. 1. 225: Represents the section width, simply understood as the width of the tire tread. 2. 60: Represents the aspect ratio, simply understood as the height of the tire sidewall. 3. R: Represents the tire type code, where R stands for radial tire. 4. 17: Represents the wheel diameter, indicating the tire is suitable for 17-inch wheels. 5. 99: Represents the tire's load index, indicating the maximum weight the tire can bear. 99 corresponds to a maximum load capacity of 775KG. 6. H: Represents the tire's speed rating, indicating the maximum speed the tire can withstand. H corresponds to a maximum speed of 210KM/H.