Why does the steering wheel shake when the car reaches 120 km/h?
2 Answers
When the steering wheel shakes at a speed of 120 km/h, the most common cause is an issue with the car's tires. If the mass distribution of the tire is uneven, it can lead to dynamic imbalance when the wheel rotates at high speeds, resulting in severe steering wheel vibration during driving. Below is some relevant information about wheel balance: 1. Causes of wheel imbalance: There are many reasons for dynamic imbalance, including the detachment of balancing weights, tire repairs, excessive wheel rim repairs, or a large amount of mud on the inner side of the rim. 2. Recommendations: It is advisable to regularly perform dynamic balance checks on the wheels. This not only extends the tire's lifespan but also improves the car's stability while driving, preventing accidents caused by tire wobbling or bouncing at high speeds.
When I drive on the highway and approach 120km/h, the steering wheel starts to shake, and it feels like the whole car is vibrating, which is very uncomfortable. Once, I went for a check and found out it was due to unbalanced tires. Long-term tire wear or slight deformation of the rims can cause vibrations during high-speed rotation that transfer to the steering wheel. Additionally, if the tires were repaired without performing dynamic balancing, this can also happen. I had my tires balanced, and the problem was resolved. Actually, warped brake discs are another cause, especially after hard braking when the discs become uneven, making the issue more noticeable. If suspension components are loose, it can also worsen the shaking. Such vibrations at high speeds are quite dangerous, as they can lead to loss of control and accidents. I recommend everyone to regularly check their tires and rims.
