In the winter morning car had just pulled away, sometimes feel a slight vibration, which is the use of nylon as the matrix of the Truck Tyre cord caused by the phenomenon. Nylon poor stability to heat, when the winter temperature is too low, the nylon will lose flexibility, long time parking at a low temperature environment, the skeleton will make Truck Tyre - the grounding part of the deformation of nylon cord to form a "flat spot . "
There is another situation will result in a "flat spot" phenomenon. That is, in the case of long distance high speed stop, when the temperature drops Truck Tyre, Truck Tyre, and the ground contact part of the flat.
Truck Tyre happen "flat spot" after the most prone to uneven wear and, therefore, should be avoided. Some car if not a long time, it is best to make Truck Tyre off the ground, in order to avoid "flat spot" phenomenon.