En primeiro lugar, ao cambiar as pastillas de freo, asegúrese de prestar atención para moer as súas esquinas. Generally, brake pads are reserved for a diagonal plane, commonly known as “chamfer”. In addition to this “chamfer”, it is also necessary to polish the edge position of the entire friction surface, which is actually a noise matching process. Because the old brake pads and brake discs have passed tens of thousands of kilometers of “lingering”, they have formed a certain complementary shape between each other. That is to say, the old brake pads have carved a notch of their own on the brake disc. After the brake pads are changed, there will be a certain friction noise. Because the brake pad and brake disc can not fully fit.