All tires have built in indicators called “wear bars” These are meant to show you when you’ve reached the end of the safe useable life of your tires. A large percentage of our customers go way beyond this limit and this introduces a great risk to them and other drivers on the road.  First and foremost, a worn tire is devoid of the intended grooves and Sipes that help evacuate water when it rains. This means that in a storm your car becomes very unpredictable and prone to hydroplaning. Your chance of an unrecoverable skid and imminent crash increase drastically.  Even in perfect conditions  your tires compound is compromised and will not perform as intended. 

Additionally if you see visible discoloration (often referred to as “cording”) this means that the outermost membrane of the tire is compromised and even small road debris can lead to a puncture and complete failure, again resulting in a loss of control or crash.  Sometimes this can be hard to spot as it is on the inside of the tire which is not as visible when the car is not on a lift. Below is an image of a tire that is way past its life, and we see much worse on a regular basis.