What Is Tire Width? Read the Sidewall Number Correctly
Tire width is the nominal distance across a properly inflated tire’s sidewalls, measured in millimeters on its approved measuring rim. The first three-digit number in a size such as 225/45R18 represents that section width, so 225 means approximately 225 millimeters, not the tread’s exact road-contact width. Key Facts at a Glance What Is Tire Width? […]