Frequently Asked Questions
While you see a tire size like 225/40R20, each part tells you something about the tire. Therefore, the ‘225’ component? That’s telling you the tire is 225 millimeters extensive, or more or less 8.9 inches. Now, the 40? That’s the tire’s ratio, which is a way of pronouncing the peak of the tire as compared to its width. And, the ‘R’ stands for ‘Radial’; that's the kind of tire construction. Ultimately, the ‘20’ is the wheel diameter in inches.
You are probably amazed to see that it stands 27.1 inches tall. That’s the diameter of the tire!