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Are run-flat tyres unsafe?

We have a Mini Cooper S. I like the car but dislike the road noise and harshness of the run-flat tyres but we knew about that before we bought it, so no complaints. However, we got a nail in a rear tyre and, not having time to get it fixed on the day, thought it would be OK to leave it for a couple of days. Two days later, when I drove it a few kilometres to the tyre shop, it drove and sounded like a car with a normal flat tyre. It was a slightly wet day, crossing tram lines was like ice skating in gumboots. I felt unsafe at 50km/h. I think run flats are a dangerous fraud that should be banned under the Australian Design Rules but I guess that's not going to happen.

 

They are not dangerous or a fraud and are quite legal. The problem is using them in Australian conditions or not following the instructions on their correct use once you have a puncture.

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