How often should the tires be changed and how many kilometers should they be changed?

The service life of tires is generally about 3 years and 8 kilometers, which is not absolute, because the wear of tires has a great relationship with the road surface. If the road surface is flat, the service life will be long, and if the road surface is bumpy or gravel, the service life of the tire will definitely be reduced. Let's talk about the most common judgment points that need to be replaced.

1.？ Judgment of tire tread depth: tire tread directly affects tire grip and vehicle stability. If the tire tread is too thin, it will even lead to a longer braking distance of the vehicle, and it is easy to slip when driving in rainy days. Therefore, it is necessary to check the tread depth of tire regularly. Generally, there will be a tread wear mark on each tire. If the tire is worn to this mark, it needs to be replaced, that is, the tread depth of the tire is less than1.6 mm. Please remind me that it is best to replace the coaxial tire together, because the tread depth of the old tire and the new tire are different, and the grip is different, which may lead to the failure of the vehicle to run off and slip.

2. Judgment of tire rubber aging: In fact, there are not many kilometers traveled by family cars every day, so there are not many tire aging phenomena. The most common phenomenon of tire rubber aging is tire surface cracking with many tiny cracks. This phenomenon is called tire cracking. Because tire rubber needs a certain hardness, there is a process called vulcanization when manufacturing.

Vulcanized rubber improves hardness, but it will age after a long time. Therefore, the general service life of tires is about 3 years.