3, the outer tyre wear into serrated what reason?

Answer: single wheel rim is the likely cause of the tyre wear: 1, the rear wheels promote the line is bad. 2, camber Angle, and imbalance.

4, driving, the steering wheel vibration is related with the four-wheel positioning, how to check?

A: low speed driving wheel vibration, the front wheel hub bad caused the may be. At high speed (80 km/hr), the steering wheel will not swing. Tire imbalance, egg-shaped wheels or rims, spring daihatsu, axle bearing wear and so on produces the steering wheel vibration (jitter) and block tyre wear.

5, can offer all kinds of judgment in the "ground tire" the cause of the figure?

A: bad has the following situation and causes of tire wear: center wear: charging too much. Wear on both sides: under-inflated. Unilateral (inside or outside) of single wheel wear: camber Angle is too big or too small.

Two front wheel at the same time inside or the outside wear: toe Angle is too small or too large. Plume wear: bad toe Angle. Block wear: tire vibration caused (jitter).