When your vehicle's tires have little to no tread left, auto repair professionals refer to them as “bald.” Once they reach this point, it is unsafe to continue driving the vehicle, as the wheels cannot grip the road. Below are answers to some common questions that motorists have about balding tires so that you know when to replace them.

What You Should Know About Balding

What causes it?

As you drive, the friction between the road and your wheels wears down tread. While this is a natural occurrence, improper tire inflation causes more stress, wearing the rubber down faster. Additionally, wheel misalignment leads to uneven wear, causing certain sections to wear out more quickly. This can cause skidding when you turn, as the wheels cannot grip the road.

Why does tread matter?

The rubber treads provide even, textured surfaces that create friction with the road. They also divert water away from under your wheels, increasing your traction and safety. When the tread is balding, your car is more likely to hydroplane, which is when the vehicle sits on top of water and isn't contacting the road. This is a common cause of accidents during storms, so visiting an auto repair shop to replace bald tires will help you remain safe.

How can you tell that tread is unsafe?

Auto repair professionals measure tread depth in increments of 1/32 of an inch. New tires have a depth between 9/32 and 11/32 of an inch, which provides optimal support for the vehicle. However, balding occurs when the treads are below 4/32 of an inch, signaling that you will need to replace the tires soon.

How can I check the tread depth?

The easiest way to check the tread of your tires is with the penny test. Insert a penny into the shallowest part of the tread. If you can see the top of Lincoln’s head, the tread is less than 2/32 of an inch. For a more accurate measurement, a local auto repair shop can use calipers and other tools to measure the tread on each tire.

If your tires are balding and you need new ones, contact Mullanphy Tire & Automotive in Florissant, MO. These auto repair technicians have been providing oil changes, engine repair, and brake service for over 31 years. They also offer tires from top brands so that your vehicle is safe on the road. Visit the website for more information about their services, or call (314) 921-4961 to schedule service.