What is the thickness of a car tire?
2 Answers
Car tires have a thickness of approximately 13mm, with the sidewall thickness being about 5mm. Car tires can be categorized into pneumatic tires and solid tires based on their carcass structure; they can also be classified as high-pressure, low-pressure, and ultra-low-pressure tires depending on the internal air pressure. Tires are often used under complex and demanding conditions, enduring various deformations, loads, forces, and high and low temperatures during operation. Therefore, they must possess relatively high load-bearing, traction, and cushioning performance. Car tires generally consist of three parts: the outer tire, inner tube, and flap.
After driving for so many years, what I care most about regarding tire tread depth is safety. New tires usually have a tread depth of around 8 millimeters, but don't just look at the surface—when it wears down to 1.6 millimeters, that's the warning line, and the braking distance can be over ten meters longer than with new tires! Last week, I helped a friend check his tires, and the tread was worn into a wavy pattern due to underinflation causing abnormal wear. Every time I do maintenance, I use a professional caliper to measure the tread depth in three places, and I always check before long trips, especially since wet and slippery roads in rainy weather really test a tire's grip. Actually, the sidewalls of tires are even thinner, and curb scrapes most often damage this area. I recommend everyone develop the habit of using a coin to check tread depth monthly—if the tread is exposed, it's time to prepare for a tire replacement.
