How often do the tires change? How long will it take to change?
Replacement time is generally not dead qualitative. Depending on the vehicle running conditions and driving habits, the wear rate and service life are different. The general did not appear according to the pattern depth to determine whether you need to replace the new tires can be bulging and crack, flawed case, general wear when left two or three mm is recommended that you replace the new tires, in order to avoid a security risk!
This has nothing to do with the four round of positioning. The original purpose of tyre transposition is to make the four tyres wear evenly and extend the service life of the tire, provided that the four wheel positioning angle conforms to the normal value of the original factory! (to add a little, the front and rear H type switching can not solve the slight bias wear mentioned above, and the front and rear X type switching is the best way to change the tire position)
Tyre transposition should be done every 10000 kilometers. Because of the pavement design, the tire will appear eccentric wear eye is not easy to detect when the normal use of the transposition may produce a slight deviation of straight line, is a normal phenomenon, after running a period of time disappear. If the deviation is serious, you can appropriately reduce the tire pressure in the opposite direction, to alleviate the deviation phenomenon (right deviation, reduce the left tire pressure, and vice versa, after a period of time to inflate the tire pressure to normal value).
