What conditions indicate a tire is in bad shape?

A tire that shows exposed cords and visible bumps is clearly in bad shape because these conditions indicate severe deterioration. When the tire's outer rubber layer has worn away, the underlying cords become exposed, which compromises the structural integrity of the tire and can lead to blowouts while driving. Visible bumps, also known as sidewall bulges, often signal that the tire has suffered internal damage or has a weak spot. These issues not only pose safety risks but also suggest that the tire cannot reliably perform its function of maintaining vehicle traction and handling.

In contrast, even tread wear, standard tread depth, and new tire conditions represent signs of a tire that's functioning well. Even tread wear shows that the tire is distributing weight properly, while standard tread depth indicates sufficient grip for safe driving. New tire condition suggests that the tire is in its best state, providing optimal performance and safety. Therefore, only exposed cords and bumps accurately signify a severely compromised tire that needs immediate attention.