Why are bald tires bad?

Bald tires are bad because they have little or no tread depth remaining, which severely compromises safety, performance, and legality in many dangerous ways. Tread on tires is designed to channel water away, provide grip, and maintain traction, and when tires become bald, they lose ability to grip road, especially in wet conditions, leading to hydroplaning where tire rides on water film and driver loses control. Bald tires have much longer braking distance, up to 2 to 3 times longer on wet roads, increasing risk of accidents. They also have poor traction in snow, ice, and mud, and are more prone to punctures and blowouts because thin rubber is easily damaged by sharp objects and heat builds up faster. Bald tires affect handling, making steering less responsive and cornering unstable. They can cause uneven wear on suspension and alignment. Legally, driving on bald tires with tread below 2/32 inch is illegal in many states and can result in fines and failed inspection. Insurance may not cover accidents caused by bald tires. Additionally, bald tires reduce fuel efficiency slightly and cause vibrations. So bald tires are bad because they are unsafe, increase stopping distance, risk hydroplaning and blowouts, handle poorly, and are illegal, and should be replaced immediately when tread is worn.