Shottenkirk Chevrolet Tire Sale

Tread
The tread on your tires should never fall below 1/16 of an inch (1.6 millimeters) in depth. If you frequently drive on slick, wet surfaces, it would actually be safer to have twice the depth. You can buy a gauge or use a penny, take a Lincoln-head penny, and insert Abe's head (head-down) into the tread. If Lincoln's entire head remains visible, you don't have enough tread.

Vibration
A certain amount of vibration is to be expected, especially on gravel roads, but if you've been driving for a while, you probably know how much vibration is okay and how much means that something's wrong. Your tires may be misaligned or unbalanced, or the shock absorbers are starting to go. It could also indicate that there's some sort of internal issue with the tire. Even if the tire isn't the root cause of the vibration, the vibration will most likely damage the tire.

Tread Bar
Newer tires now have tread wear indicator bars built into the tires themselves. These bars, invisible or barely visible when the tires are new, progressively begin to appear as the tread wears down. They appear as flat rubber bars running perpendicular to the direction of the tread itself. If more than one or two of these are visible on a tire, the tread is getting low. You can even check the wet tracks your tires leave after driving through water.

Bulges
Sometimes the outer surface of the tire begins to weaken. The result can be a bulge or blister that extends outward from the surface. This weak spot can cause an unexpected blow out.

Sidewall Cracks
Not all problems with the tires are going to be in the tread. They can also appear in the sidewall. Look for tracks or cuts in the sidewall or grooves. This could be a sign that your tire is developing a leak, or that it could blow out.

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