Ideally, all the tires on your vehicle should wear down at the same rate, as long as you properly rotate them at the recommended mileage for your vehicle. The tire should wear down at the center, where it has the most contact with the ground. When your wheels are not properly aligned, you may begin to see abnormal wear patterns on your tires. Your tires will seem to be wearing down more on one side than the other. It is essential for your tires to wear down evenly. This provides a smooth riding experience when you use your vehicle. When your tires wear evenly, you will also be able to replace them all at once, which is the best way to replace them.