How to correctly judge the degree of tire wear?

To correctly judge the degree of tire wear, you can use the following methods:

1. Tread depth check: Use a special tool or coin to measure the tread depth of the tire. The tread depth of a new tire is usually between 8 mm and 10 mm. When the tread depth of the tire drops below 2 mm, you need to consider replacing the tire.
2. Wear indicator: There is usually a wear indicator on the tire. When the tread of the tire is worn to the same level as the indicator, it means that the tire has been excessively worn and needs to be replaced.
3. Visual inspection: Carefully check the side and tread of the tire to find cracks or uneven areas. If you find obvious cracks, deformation, or bulges on the tire, even if the tread depth is acceptable, you need to replace the tire.
4. Observe the tread wear of the tire: The bulge in the tire groove is usually at least 1.6 mm high. When the tire wears to this raised mark, it means that the tire has reached the end of its service life, which will greatly reduce friction and increase the risk of slipping in rainy and snowy weather.
5. Consider the service life of the tire: The service life of a general household car tire is about six to seven years. Beyond this time, the key performance of the tire, such as shock resistance and grip, may be reduced.
6. Check whether the tire is damaged: such as deformation, nail puncture or too many tire repairs. It is generally recommended not to repair the tire more than 5 times. Once this number is exceeded, it is recommended to replace the tire in time.

Through the above methods, you can effectively judge the degree of tire wear and replace the tire when necessary to ensure driving safety.