When to Change Tires – When should you change tires? There are situations of uncertainty in which we can end up with the doubt of having to replace the tires. In the event that we are faced with a flat tire or a flat tire, it is clear that we must replace this tire with a new one. But when should you change your tire if there is no flat tire? The identification will largely depend on tire wear over its useful life. Wear may come from different regions depending on our driving ability and the vehicle (wear in the middle, on both sides, on one side, diagonally, irregularly, etc.).Tire changes the legal level, the tire change is mandatory as long as the draft has a depth of 1.6 millimeters. Circular with a blanket lower than this drawing depth is punishable by law, a lower depth indicates excessive wear and therefore is a punishable offense.