What Causes Brake Vibration When Braking?

[SanTucker]

Reasons for brake vibration when braking: 1. Uneven brake disc surface with excessive radial runout, causing inconsistent contact between brake pads and discs during braking, resulting in fluctuating braking force and vehicle vibration; 2. Significant deviation in wheel alignment data, especially incorrect front wheel alignment angles or excessive toe-in; 3. Improper tire pressure (either too high or too low) - higher speeds with overinflated tires cause stronger vibrations, while underinflation leads to floating sensation and pulling; 4. Abnormal tire wear - wheel rim deformation causing tire deformation, resulting in uneven tire surface wear and wheel imbalance that causes vibration during driving.