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Grinding standard tires is to grind off the white barcode tires at the toe of the tires, and the tires are not ** tires if the trademark is rubbed off, which is detected at the factory to have problems, and some can be used, but not three packs of products, the manufacturer is not responsible for the problem, it can be said that it is an unqualified tire.
Generally speaking, in addition to the factory self-inspection of unqualified tires defects, other channels grinding tire quality and ** tires are the same, but there is no three-pack guarantee, the factory testing defective tire factory is called available tires, there are generally some small defects such as uneven gum, dynamic balance deviation is too large jumper, etc., this tire can see the defects from the appearance.
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The red dot is where the tire is heaviest. The yellow dot is where the tire is lightest. The reason why there are these two signs is because it gives the person who fits the tire a more accurate idea of where the heaviest and lightest tires are.
And these two points are also the most basic knowledge to learn before installing tires. A professional tire installer fits the new tires to the rims.
The red dot is then aimed at the valve of the rim. Since the valve is the lightest position of the rim, the red dot should be aligned with each other to complement each other. Yellow dots generally don't need attention. Finally, a certain weight of gas is injected into the tire. Finally, do a good job of dynamic balance.
That's it.
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It's a standard tire, and it's all second-class products.
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Ha ha! The tire is the car "rolling judgment or rolling", and now it is nothing more than the two kinds:
1. Change the circumference of the wheel hub, and change the tires to big or small (but the space for changing is not large, thinking that this is limited by the design of the car).
2. The width of the wheel hub is to increase the width of the tire, so that the car can drive more smoothly (because the contact area of the car increases); There is also a small car, that is, the wheel hub can be directly stuck in the tire tire (special tire, called "vacuum tire"), after the modification of the car driving more smoothly, there is no inner tube, vacuum tire because it is a steel wire composition, high liquid heat will not appear puncture situation.
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The new car is generally two front wheels wear out quickly, in about 60,000 kilometers to replace, the tire pattern is designed according to the different road conditions, according to the reason that the larger the contact surface, the greater the friction coefficient, but also a series of road conditions such as drainage, so the pattern should be replaced below 3 mm.
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Hello! There are many factors that affect the mileage of tires, such as road conditions and driving style.
In addition, daily maintenance, such as wheel alignment and regular air pressure checks, will also have a significant impact on the service life of tires. Therefore, it is difficult to give specific data on how many kilometers a tire can drive.
In general, if the following five situations occur, a tire change is required:
1. When the tire is worn to the wear limit mark, it must be stopped (that is, the tread depth is less than mm).
2. Tire aging.
3. Tires with deformed tread or bead damage, tires damaged by sidewall crushed due to airless driving, and tires corroded by chemicals shall not continue to be used.
4. Bulging tires shall not continue to be used.
5. If other damage affects the safety of the tire, it shall not be used continuously.
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First, tires generally have a service life of three years. Second: each tire has its own warning line, and it is generally not used when it reaches this line. (If you look closely at the top of the tire, there are a few tiny squares inside the tread, that's it).
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Do you want to ask when it's time to change?
There are several reasons for tire realignment:
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