Normally, the only markings you see on your tire's sidewall are letters and numbers. There's the SSR label that means the tire can run flat for a limited distance, 225/45R18 that points to your tire ...
The Family Handyman on MSN
The Secret Meaning Behind the Colored Lines on Your New Tires
While the colored lines found on new tires are optional, follow along to see what they mean, and why they are there.
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