The tire has nails. Should I get a new one?

Under what circumstances should the tire be changed? Tires are seriously worn and aged, and cracks are common. Tires are often maintained, and the metal coil inside the tires has been deformed or broken, and the tire wall has been punctured. These situations need to change quickly.

1, replaced according to service life:

The service life of tires is generally about 5 years. At this time, aging and cracking will occur, so time is a very important reference value.

The date of production on the tire is not marked with the year, month and day as usual, but described with four digits. This four-digit number is also different from our normal thinking. The last two digits represent the year and the first two digits represent the week number. As shown in the figure below, 02 15 represents the output in the second week of 20 15.

When we buy tires, we must pay close attention to these figures to avoid buying overstocked products and retreading tires.

2, according to the wear limit replacement:

Tires touch the road every year, just like our shoes, they are worn out. There are limited wear marks in the tread groove of the tire. If it is worn close to the mark, it needs to be replaced. Tires with serious tread wear will have poor grip and drainage, and there will be great safety hazards if they continue to be used.

According to the current regulations in China, when the tire surface pattern is worn below 1.6 mm, it should be replaced. The wear marks on tires are also set according to this standard. But in fact, this is only the minimum requirement. To this extent, the grip and drainage performance of the tire will be greatly reduced, and the safety will be worse. I have read the suggestions of some foreign tire experts, saying that it is safer to double this standard, that is to say, the depth of tire tread pattern should be above 3 mm

3, according to the aging situation:

Because everyone's car environment is different, some cars may not reach the service life or kilometers, but they will age faster than others because of wind and rain, improper maintenance and other reasons.

Tires like this are obviously aging seriously, so we are uncomfortable to use them. We should replace them as soon as possible.

4, according to the degree of damage replacement:

In addition to bulging, another serious damage to the tire is cracking. This kind of crack may be caused by the hardening of rubber, a stone cut or man-made damage.

In addition to bulging, another serious damage to the tire is cracking. This kind of crack may be caused by the hardening of rubber, a stone cut or man-made damage.

In addition to bulging, another serious damage to the tire is cracking. This kind of crack may be caused by the hardening of rubber, a stone cut or man-made damage.

5. Replace according to the number of repairs:

Generally, after nailing, there is no need to change the tire. If the nail doesn't stick to the tire wall, but sticks to the crown and doesn't puncture the tire, pull it out, but this requires professional judgment, and the owner himself had better not pull it out. If a nail pierces a tire, it needs repairing.

Tires that have been repaired many times will definitely affect their performance, but there is no specific standard for how many times a tire can be repaired, because the size of the tire hole is different every time. Generally speaking, a tire can be repaired four or five times, which requires more evaluation and judgment by technicians.