What is the difference between run-flat tires and ordinary tires?
2 Answers
The differences between run-flat tires and ordinary tires are: 1. Different internal structure: Run-flat tires contain natural renewable rubber inside; ordinary tires do not. 2. Different wear resistance: Run-flat tires can continue to drive normally after a puncture; ordinary tires can only be replaced or repaired after a puncture. The functions of both run-flat tires and ordinary tires are: 1. To support the entire weight of the vehicle and bear the load of the car; 2. To transmit traction and braking torque, ensuring the adhesion between the wheels and the road surface; 3. To reduce and absorb vibrations and impacts during driving, prevent severe vibrations of car components, and extend the service life of the components.
I once experienced a tire blowout on the highway, which gave me a profound understanding of the key differences between regular tires and run-flat tires. Regular tires immediately go flat after a puncture or blowout, causing the vehicle to lose control and potentially roll over, which is extremely dangerous. In contrast, run-flat tires feature specially reinforced sidewalls that can support the vehicle's weight even when punctured by a nail, allowing continued driving for 80-100 kilometers to a safe location without needing to change a spare tire, thereby reducing the risk of emergency stops. Run-flat tires are heavier, slightly increasing fuel consumption, and they feel stiffer when driving, offering less comfort than regular tires with more noise. However, they eliminate the hassle of carrying a spare tire, making them particularly suitable for urban traffic jams or long-distance travel. Safety comes first, so I recommend frequent drivers prioritize run-flat tires. Although they cost 30%-50% more, they are worth every penny.
