Frequently Asked Questions
Every element that makes up this tire size has a distinct meaning. The number 405 represents the
tire width, measured in millimeters from shoulder to shoulder.
When expressed as a percentage of tire width to tire height, the aspect ratio is 25. The letter R
stands for the tire's radial construction. Number 24 is the wheel's diameter, measured in inches.
The tire has a height of 32.0 inches. This measurement is also known as the tire diameter. Before purchasing a tire, it is always a good idea to review the specs and consult a tire expert or your car's manufacturer.