When it comes to replacing winter tires, the first thing that people think of is that the tire need to be replaced when it is snowing in winter, but in fact, even when it is not snowing, once the temperature is below than minus seven degrees, they need to be replaced with winter tire.

  Whether need to replace winter tires in winter depends on if the tire performance meets safety standards. To meet this standard, tire grip is one of the important part. The replacement of winter tires is to make the tire grip more closely to the standards.

  Many people think that the reason why winter tires slip is because of snow and ice in winter. In fact, it is not only because of that. Even if there is no snow on the road, summer tires will harden because of the low temperatures. The grip and friction will decrease when the tires harden. In this way, the controllable force of the tire will naturally decrease. Therefore, when the temperature is lower than minus seven degrees, the winter tire must be replaced in time no matter if it snows.