What is a sign of under-inflated tires?

Under-inflated tires typically show more significant wear on the outer edges rather than the center. When a tire is under-inflated, it does not make full contact with the road surface as intended. Instead, the edges will be pushed into contact with the road more than the center of the tire, leading to accelerated wear on the outer sides. This condition can compromise the tire's performance, reduce fuel efficiency, and increase the risk of tire failure, which is why proper tire inflation is essential for safe driving and optimal tire longevity.

In contrast, the other choices illustrate different tire wear patterns or conditions that are not directly associated with under-inflation. For instance, tires that wear down in the center may indicate over-inflation, while tires showing no wear might suggest a lack of usage or an incorrect diagnosis of their condition. So, recognizing the signs of improper tire inflation is crucial for vehicle maintenance and safety on the road.