Listening to Sound
If the brakes are accompanied by the sound of "iron-iron" (which may also be the result of the wear-off of the brake pads at the beginning of installation), the brake pads must be replaced immediately. Because the limit marks on both sides of the brake pads have directly rubbed the brake discs, it proves that the brake pads have exceeded the limit. In this case, when the brake pads are replaced, the brake discs should be checked. When such a sound occurs, the brake discs are already damaged. Even if the new brake pads are replaced, the sound cannot be eliminated. In severe cases, the brake discs need to be replaced. .
In addition, some bad quality brake pads have hard spots, which will also produce abnormal noise. In general, the abnormal noise generated will disappear after a period of wear.
Tip: When you hear the sound of the brakes, it is often late, and the brake discs will be damaged more or less. The price of the brake disc is much higher than that of the brake disc. Therefore, it is recommended that you check the brake pads frequently to avoid damage to the brake disc.