Can Run-Flat Tires Be Punctured?
2 Answers
Run-flat tires can be punctured, but they are designed to prevent blowouts. Here is relevant information: 1. Characteristics of run-flat tires: After a blowout, the vehicle can still travel up to approximately 80 kilometers at a maximum speed of 80 km/h, which is sufficient to reach the nearest repair shop for tire replacement. 2. Functionality: Run-flat tires not only allow continued driving after losing pressure but also ensure safety. After a blowout, run-flat tires do not immediately collapse because their sidewalls are particularly thick, providing strong support to prevent the vehicle from rolling over. Additionally, vehicles equipped with run-flat tires do not have a spare tire. They can continue driving after a blowout without needing immediate tire replacement, offering convenience and increasing trunk space.
I used to think run-flat tires were invincible, until my own car got punctured by a steel bar on the road. Actually, run-flat tires simply have extremely stiff sidewalls that allow them to keep rolling even when completely deflated, preventing roadside breakdowns. But the tread rubber can still be punctured by sharp objects like nails or glass shards - I once saw a mechanic pull out a 5cm-long screw from a run-flat tire. If you encounter a major gash, even the toughest sidewalls won't help; last year my friend's run-flat tire was completely destroyed by a rock cut during off-roading. The advantage is that punctured run-flat tires can still get you to a repair shop, which is much safer than regular tires blowing out completely.