How often should regular tires be replaced?

[StAlex]

Here is an introduction on how often tires should be replaced: 1. Generally, the service life of tires can be determined by two standards: the usage time should not exceed 5 years; and the mileage under mixed road conditions should not exceed 60,000 kilometers. This standard applies to ordinary family cars. If the owner frequently drives on unpaved roads such as construction sites, the tires should be replaced earlier. 2. If the tires are severely worn, the tread thickness is close to the wear indicator, or if there are bulges, tread deformations that cannot be repaired, the tires should be replaced as soon as possible. Here is more information about tires: 1. If the cracks on the tires are less than 6 millimeters in length and do not damage the internal cord material, they can be repaired at a shop and do not need to be replaced immediately. 2. If the damage is too large or the sidewall is already damaged, new tires should be replaced as soon as possible. If you feel it's a pity to discard the old tires, they can be repaired and used temporarily as spare tires.