What symptom indicates unbalanced tires at high speeds in a vehicle?

The symptom most indicative of unbalanced tires at high speeds is the vibration of the steering wheel. When tires are unbalanced, they do not rotate evenly, which can lead to a disturbance in the vehicle's stability, causing the steering wheel to vibrate, particularly noticeable at higher speeds. This vibration originates from the uneven mass distribution of the tires, leading to an oscillation that can affect the entire chassis.

While steering wheel shake might also be associated with steering components or alignment issues, the vibration specifically highlights the imbalance that becomes pronounced under higher velocity. Recognizing this symptom helps technicians diagnose tire balance issues and prevent further wear or damage to suspension components, enhancing safety and comfort while driving.