Car Tire Number Meaning
Is the ratio of the height of the tires cross-section to its width. Winter tires may carry the letter R 106 mph or higher. Tyre Designation Wheel Designation Design Tyre Knowledge Car Tyre Size Automobile Engineering Tire Specification So if a tire has an aspect ratio of 45 that means the tires height is 45 of its. . If there is no letter s than the tyre is engineered according to European Tyre and Rim Technical Organisation ETRTO standards. It is an optional letter or letters to indicate the intended vehicle for the tyre that the tyre is engineered according to Tyre and Rim Association TRA standards. The two-digit number after the slash mark in a tire size is the aspect ratio. 21565 R15 65 in the sequence is the aspect ratio of the tire. This number is the tires aspect ratio essentially the height of the tires profile outward from the rim represented as a percentage of the tires width. For a better understanding lets take...