Under what circumstances should tire repair

1. The hole diameter of the nail inserted into the tire tread is less than 6mm.
2. The tread is slightly damaged. Because the road is uneven and there are a lot of accumulations, it is common for the tires to be slightly damaged. Drivers and friends should not be too nervous, but if the tire pattern is off, it is recommended to replace it when running at high speed.
3. The side of the tire is slightly damaged. The wheels of some cars were pressed against the road teeth. As a result, some rubber was dropped in the middle of the sidewalls, but the cord fabric layer was not seen. At this time, my friends should check for air leaks.
4. Insert nails on the side of the wheel. Nails are inserted into the sidewall, and the repaired tire can continue to be used as long as there is no damage to the cord of the ply.

What are the conditions for tires that cannot be used at high speeds

1. The pattern wear indicator line on the tire; in the current car, there will be a tread pattern wear indicator line, unlike the old-fashioned old tires in the past. If the tire is worn to a high degree, the indicator line in the tread gully will appear. When checking the tire and occasionally find one or two indicator lines, remind you to be careful when you are on a slippery road. It is recommended to replace the new tire in time.
2. The depth of the pattern on the tire; experts emphasize that the depth of the pattern on the tire should reach 1.6 mm. If it is often driven on a road with low friction, the depth of the pattern should be controlled between 1.6-3.2 mm.
3. Foaming and bulging tires; if there are blister and bulging tires, it is because the outer surface of the tires is not strong enough. It is recommended to go to the auto repair shop to detect the tire failure and replace the tires in time, otherwise it will be easy to burst. Fetal phenomenon.
4. Tire sidewall cracks; tire problems do not just look at the tire tread, but also observe the sidewall of the tire. If you find cracks on the tire sidewall, it may be caused by sharp objects on the road, but this situation is also very easy A puncture occurs.
5. Don't think that cracks are unimportant. This is something that must not be underestimated. The tires should be replaced immediately.