What is the thickness of a car tire?
2 Answers
Generally, the tread thickness of a car tire is about 13 millimeters, with a tread pattern depth of 7 millimeters and a tread thickness of 6 millimeters. The sidewall thickness is 5 millimeters. For off-road vehicle tires, the sidewall thickness is about 20 millimeters, with a sidewall pattern depth of 14 millimeters and a sidewall thickness of 6 millimeters. The sidewall thickness is 10 millimeters. Car tires can be divided into pneumatic tires and solid tires based on their carcass structure, with most modern cars using pneumatic tires. Depending on the internal air pressure, pneumatic tires can be categorized into high-pressure tires, low-pressure tires, and ultra-low-pressure tires. Low-pressure tires are commonly used in various types of vehicles. Pneumatic tires can also be divided into tube tires and tubeless tires based on their construction. Tubeless tires are widely used in passenger cars. Depending on the arrangement of the internal cord layers and cushion layers, tires can be further classified into radial tires and bias-ply tires. Radial tires are commonly used in cars, and their specifications are usually marked on the sidewall. Car tires are one of the essential components of a vehicle. Currently, most passenger car tires sold in the market are tubeless tires. Tubeless tires have an inner liner made of synthetic rubber, which seals the compressed air inside the tire. They ensure good adhesion between the wheel and the road, improve the vehicle's traction, braking, and off-road performance, and bear the weight of the car. The important role of tires in automobiles is increasingly being recognized.
I found that tire thickness is not a fixed value, but depends on specific parts and the tire's condition. The tread thickness of a new tire is generally around 6-10 mm, with standard passenger car tires being about 8 mm, but the sidewall area may be thinner. Thickness wears down with mileage: approximately 1 mm is worn off for every 10,000 km driven. The safety limit is when the tread thickness is less than 1.6 mm, otherwise braking distance increases significantly on wet roads. I recommend using a specialized depth gauge or a simple coin check: insert it into the tread to measure depth, and if it's below 2 mm, replace the tire as soon as possible to avoid the risk of a blowout. Tire thickness affects driving stability and fuel consumption, and regular maintenance can extend its lifespan.
