1. Tread depth
胎面花紋的厚度應大于1.6毫米。如果在低摩擦的潮濕路面上行駛，請確保胎面花紋的厚度是上述值的兩倍。盡管您可以從專家那里學習并購買量規來測量胎面花紋的厚度，但是老司機經常使用流行的方法來估算胎面花紋的厚度。費用為$ 1。向上插入胎面槽，因為從邊緣到頂部的距離為1-2 mm。此時，您可以看到胎面花紋的總厚度不足。
The thickness of tread pattern shall be greater than 1.6 mm. If driving on wet roads with low friction, make sure that the tread thickness is twice the above value. Although you can learn from experts and buy gauges to measure tread thickness, old drivers often use popular methods to estimate tread thickness. The cost is $1. Insert the tread groove upward because the distance from the edge to the top is 1-2 mm. At this time, you can see that the total thickness of tread pattern is insufficient.
2. Indication line of pattern wear
Compared with the old products, the new tire design is more humanized: tread wear indicator. If the tire is new or the wear level is very low, these indications can hardly be seen, but when the wear reaches a certain level, you will find that these lines are hidden in the tread groove. The tread pattern wear indicator line is a flat rubber strip which is vertically embedded in the vertical tread groove of the tread. If the tire is inspected and one or two indicator lines are occasionally found, the tread pattern will become significantly thinner. In this case, be careful when driving on slippery roads. If you can clearly see almost all the indicator lines on the tire, it means that you need to change the tire as soon as possible.
3. Tire sidewall crack
Not all tire problems are concentrated on the tread, and there are also some problems on the sidewall. Check the sidewall of the tire for obvious cracks or cuts. These small grooves indicate that the tire may leak in the future, and worse still, the tire may burst. The trouble with these tires is something we should avoid. Therefore, if the cracks on the sidewall of the tyre appear to be more serious, drive the vehicle to the repair shop and replace the tyre as soon as possible.
4. Tire inflation and inflation
Due to the lack of strength, the outer surface of a tire may rise and blister more than that of a normal tire. Tires face a similar situation. If you fail to deliver the tire to the repair shop in time and find the tire failure, the parts with insufficient tread strength may suddenly crack at high speed. Tire rupture can even cause serious injury to the driver and passengers.
It is inevitable that a certain degree of shaking will occur when driving, especially in bad road conditions. With some driving experience, you can feel the jitter within a reasonable range, and the jitter indicates that the vehicle is faulty.