Is Wheel Balancing Necessary After Front-to-Rear Tire Rotation?

[Grant]

Wheel balancing is absolutely necessary after front-to-rear tire rotation. A car's wheel is an integrated unit composed of a tire and a rim. However, due to manufacturing limitations, the mass distribution of this unit cannot be perfectly uniform. When the car wheel rotates at high speed, it will form a dynamic imbalance, causing phenomena such as wheel wobbling and steering wheel vibration during driving. Below is relevant information about wheel balancing: 1. Install balance weights (small lead clips with marked weights) corresponding to the displayed values on both sides of the rim simultaneously. For example, if the display shows 10 and 15 for left and right respectively, you should install two balance weights weighing 10 and 15 on the left and right sides respectively, rather than installing only one 5-weight on the right side, as that would not meet the requirements. 2. Tires should undergo regular dynamic balance checks using a balancing machine. Tire balance is divided into two types: dynamic balance and static balance. Dynamic imbalance will cause the wheel to wobble, resulting in wave-like wear on the tire. 3. Static imbalance will cause bumping and bouncing, often leading to flat spots on the tire. Therefore, regular balance checks can not only extend tire life but also improve driving stability and prevent traffic accidents caused by loss of control due to tire wobbling or bouncing at high speeds.