What Are Those Colored Lines on New Tires?

Have you ever noticed the colorful lines painted across brand-new tires and wondered what they’re actually for? Red, yellow, blue—sometimes more than one—these mysterious stripes seem important, yet they disappear after just a few drives. So what do they really mean?

In this video, we uncover the surprising truth behind those colored lines on new tires. Spoiler alert: they’re not for drivers at all. We’ll take a look behind the scenes of tire manufacturing, explain why these markings exist, how factories use them, and clear up some common myths about tire quality, safety, and performance. We’ll even touch on a brief history of when and why tire makers started using paint markings in the first place.