One front tire shows spotty or isolated cupping and worn spots. What is the most likely cause of this problem?

Cupping or isolated worn spots on a tire can indicate a problem with how the tire interacts with the road and the vehicle. An out-of-balance tire is known to cause irregular wear patterns, including cupping. This occurs because an unbalanced tire does not rotate evenly, leading to areas of increased friction and stress as certain parts of the tire make more contact with the road than others. This uneven wear can manifest as isolated spots or cupping, severely compromising the tire’s integrity and performance.

When tires are not properly balanced, it can also lead to vibrations felt while driving, which further exacerbates uneven wear. Regular tire maintenance, including balancing, is crucial in preventing such issues and ensuring a smooth and safe driving experience.