Under what circumstances does a car need to undergo dynamic balance testing?

Under what circumstances does a car need to undergo dynamic balance adjustment?
If the tires have not been replaced, there is no need to do it. Tire balance is divided into two types: [dynamic balance] and [static balance].
Dynamic imbalance causes the wheels to sway, resulting in wave-like damage to the tires; static imbalance causes jolts and vibrations, often leading to flat spots on the tires. Therefore, regular balance checks not only extend the lifespan of the tires but also improve the stability of the car during driving, preventing loss of control when driving at high speeds due to tire swaying and vibrating.

Judgment and handling methods for dynamic balance:

(1) Dynamic balance:

The wheels of a car are a whole composed of tires and hubs. When the car wheels rotate at high speed, a dynamic imbalance state is formed, causing the wheels to shake and the steering wheel to vibrate during driving. To avoid this phenomenon or eliminate it that has already occurred, the wheels need to be corrected in the dynamic state by increasing the weight, so as to balance the edges of the wheels. This correction process is what people often call dynamic balance, which is also commonly referred to as adding balance blocks. Dynamic balance ensures that the tires can be driven smoothly, prevents shaking, and makes the car drive more smoothly and safely at high speeds.

(2) Situations requiring dynamic balance:
1. After replacing new tires or after repairing a collision accident
2. Uneven wear on one side of the front or rear tires
3. The steering wheel feels too heavy or wobbles when driving
4. The car veers to the left or right when driving straight
5. If none of the above conditions exist, but as part of regular maintenance, it is recommended that new vehicles undergo dynamic balance checks after 3 months of driving or every half a year, or 10,000 kilometers

(3) Dynamic balance is achieved by adjusting the wheel configuration balance, adding different weight blocks at different positions, so that the car tires are in a concentric motion, making driving at high speeds safer and more stable.

* Once the tires have been "balanced", dynamic balance must be performed. After completing the dynamic balance, the following advantages are achieved:
1. Enhance driving comfort
2. Reduce gasoline consumption
3. Increase tire lifespan
4. Ensure the straight-line stability of the vehicle

5. Reduce the wear of the chassis suspension components
6. Enhance driving safety