What is the definition of tire specifications?
2 Answers
The parameters displayed on tire specifications represent the tire width, aspect ratio, maximum speed the tire can withstand, tire type, and applicable tire size. The functions of tires are as follows: 1. Support the entire weight of the vehicle and bear the load of the car. 2. Transmit traction and braking torque, ensuring the adhesion between the wheels and the road surface. 3. Reduce and absorb vibrations and impact forces during driving, preventing severe vibrations and premature damage to automotive components. 4. Adapt to the high-speed performance of the vehicle and reduce noise during driving, ensuring driving safety, handling stability, comfort, and energy-saving economy.
Tire specifications, simply put, are a series of codes that tell you the size, performance, and other details of a tire. For example, a common format like 205/55R16 91V: the 205 at the beginning indicates the tire width is 205 millimeters, the 55 in the middle is the aspect ratio, meaning the sidewall height is 55% of the width, the R stands for radial construction which is more durable, the 16 is the suitable rim diameter of 16 inches, the 91 is the load index capable of carrying 615 kilograms, and the V is the speed rating allowing speeds up to 240 km/h. I often share with friends that these codes help you choose the right tires to match your car's performance requirements; otherwise, it could affect grip, handling, and fuel efficiency. Always double-check the recommended values in the manual before changing tires, and never alter the specifications arbitrarily, as it might cause skidding during high-speed turns. Nowadays, many new cars come with tire pressure monitoring systems, but incorrect specifications can still damage the vehicle.
