What causes shaking when braking at 60-80 km/h?

[CamillaLee]

The following are the reasons for shaking when braking at 60-80 km/h: 1. Tire deformation: It is necessary to check whether the front wheel alignment angles and toe-in meet the requirements, and adjust if they are out of specification; lift the front axle and rotate the wheels to check the static balance of the wheels and whether the tires are excessively deformed. If deformed, they should be replaced. 2. Encountering bumpy roads: This is because when the car is driving, the ball joints of the tie rods may be worn and loose, or the rubber sleeves at the joints may have fallen off. Additionally, the tires may have become irregular due to wear. The car should be sent to a professional repair shop for inspection, and the damaged parts should be replaced. 3. Braking too hard: In general, excessive or frequent braking may cause the brake discs and brake pads to overheat and deform when cooled, leading to steering wheel shaking. Usually, the symptoms can be resolved by replacing the brake discs and brake pads.

[OCamila]

I believe that when experiencing body vibration during braking at speeds of 60 to 80 km/h, the most common issue is warped brake rotors. Disc deformation usually occurs after high-temperature braking or water exposure, leading to uneven braking pressure. Another possible cause is a seized brake caliper, which prevents the wheel from moving freely. I often see this situation, especially with frequent hard braking habits that exacerbate uneven disc wear and vibration. If the brake disc surface has scratches or irregularities, the vibration becomes more noticeable at high speeds. It is recommended to visit a repair shop as soon as possible for an inspection. A dial indicator can be used to measure disc flatness, and resurfacing or replacement may be necessary if needed. Don’t forget to check if the brake pads are excessively worn—replacements should match the discs. Regular maintenance of the braking system can prevent this issue, such as cleaning brake components during each service and using engine braking more often on long downhill sections. Safety first—don’t ignore it, as doing so increases the risk of brake failure.

[LeTravis]

I think that experiencing shaking when braking at speeds between 60 to 80 km/h is mostly related to tire imbalance or wear. Wheel imbalance can cause the vehicle to vibrate at high speeds, especially when tire pressure is uneven or the wheels are out of round. For example, my car had this issue before, and after inspection, it was found that the tires hadn't undergone dynamic balancing and alignment for a long time, leading to severe body shaking when braking. Other factors like wheel hub deformation or loose bolts can also cause this. If the tires are aging with bubbles or uneven tread patterns, the shaking worsens under braking pressure. It's recommended to first check if the tire pressure is standard, then visit a professional shop for dynamic balancing and four-wheel alignment. Regularly inspecting tire conditions every 10,000 km can prevent this hassle. By the way, it's worth mentioning that during rainy weather when tire grip is poor, balancing issues require even more attention. Developing good habits can improve driving stability—don't wait for small problems to turn into major repairs.

[SanMia]

I noticed shaking when braking at speeds between 60 to 80 km/h, which can sometimes be caused by suspension system failures. Worn shock absorbers or failed suspension springs may not effectively absorb vibrations, leading to brake-induced body sway. If the lower control arm bushings are worn or the tie rod is deformed, it can also affect stability. I recommend promptly inspecting the suspension components for oil leaks or looseness. Frequent driving on rough roads accelerates suspension wear, so regular checks can prevent issues. Ignoring the shaking may, over time, accelerate tire or steering system problems.