What is the thickness of a car tire tread?
2 Answers
Generally, the tread thickness of a car tire is around 13mm (7mm for tread pattern depth and 6mm for tread thickness), with the sidewall thickness being 5mm. Below are the functions of tires and precautions for their use: Functions of tires: Transmit traction and braking torque, ensuring good adhesion between the wheels and the road surface to improve the car's power performance, braking performance, and passability; work together with the car suspension to cushion the impact during driving and dampen the resulting vibrations. Precautions for tire use: Avoid rapid acceleration, emergency braking, or sharp turns while driving; avoid hitting curb stones; avoid riding onto curbs when parking; avoid quickly driving on unpaved roads or roads with uneven surfaces.
The thickness of a car tire's outer tread mainly refers to the depth of the tread pattern. For new tires, it is typically around 8 to 10 millimeters, providing strong grip and good handling performance. Over time, it gradually wears down. When the tread depth reaches 1.6 millimeters, it is considered the safety limit. Continuing to use tires beyond this point increases the risk of skidding or brake failure, especially in rainy conditions. I once experienced a dangerous skid on the highway due to worn-out tires—a lesson I won't forget. Checking tread depth is simple: you can use an inexpensive tread depth gauge or even a coin. Insert a one-yuan coin into the tread—if the national emblem is fully visible, the tread is too thin. I recommend checking every 5,000 kilometers, as tires generally last around 60,000 kilometers. Different tire types vary in thickness; for example, off-road tires start thicker when new, while city tires are thinner but more wear-resistant. Safety comes first—don't wait until the tread is completely gone. Spending a little on prevention can avoid major accidents.
