for car owners, every day with the tires, do not think of the tire brand I know the tires very well, specifications, signals and sizes. Do you know the meaning of the two points of "red dot" and "yellow dot" on tyres?
1, red dot.
as shown above, this "red dot" is actually the identification point of the maximum vibration point of tire, which represents the maximum point of tire longitudinal steel. The popular point is that red dots rotate around the tire to make the point of vibration greatest.
when the tire and the ground contact rotation at 360 degrees, the vibration of the tire at different angles is also different, which is called RFV. The greater the value of RFV, the greater the vibration generated by the tire during driving. Conversely, the smaller the RFV value, the smaller the vibration.