What is the difference between 45R18 and 45ZR18?
1 Answers
45R18 and 45ZR18 have the following differences: 1. 45R18: In 245/45R18, 245 represents the tire width of 245MM, 45 indicates the aspect ratio of the tire section is 45%, meaning the section height is 45% of the width, and R18 represents the rim diameter of 18 inches. 2. 45ZR18: In 245/45ZR18, 245 represents the tire width of 245MM, 45ZR indicates that the maximum driving speed of this tire can exceed 240KM/H, and R18 represents the rim diameter of 18 inches. 3. Radial Tire: Passenger car wheels generally use radial tires. The specifications of radial tires include width, aspect ratio, inner diameter, and speed limit symbol.