Run Flat Tyres

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Mon 27 Mar 2006 20:43
Run Flat Tyres - Dude - {P}

With run flat tyres being a relatively new technology around which the whole car suspension and tracking is designed & set up, does anyone know if runflats were later to be replaced with conventional pneumatic tyres, whether the manufacturers warranty and also the insurance would be invalidated.??????
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Mon 27 Mar 2006 22:18
Run Flat Tyres - bell boy
not that new.............
In the early 1970s, Dunlop unleashed a tyre concept called the Denovo. It was a run-flat tyre. Pirelli hooked up with Dunlop for a short time to see what it could add to the technology, and Michelin began work on its version.
i seem to remember mini"s and sd1"s had them for starters
--
\"a little man in a big world/\"
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Fri 31 Mar 2006 18:43
Run Flat Tyres - boxsterboy
Friend of ours has a 530d, and had a pucture on the way to a very important meeting a long way from home. She followed the advice and drove on slowly, but after a few miles the run-flat shredded. This left her stranded at the side of the road, with no spare wheel, missing her important meeting. She had to get recovery to take her all the way home (Surrey from Midlands).

She rightly stamped her feet, and BMW coughed up and replaced all 4 tyres with conventional tyres, plus an extra spare rim and tyre.

So, in answer to your question, it would appear that, yes you can replace run-flats with conventional tyres without invalidating warranty (don't know about insurance).

But the moral of the story to me is that run-flats are useless. Even if her tyre hadn't shredded she would have had to swap it for a new tyre before she could drive home, not easy late on a Friday afternoon. Yes, they can get you out of trouble (e.g. off the motorway), but not much further.

In 25 years of driving, something like 400,000 miles in total I have had 3 puncture, never on a motorway, but always when I have been coming back to a parked car before a long journey. Run-flats would be useless here. They have an inferior ride quality, something that you notice all the time. Also run-flats can't be repaired like conventional tyres.

I would never buy a car with run-flats.
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Fri 31 Mar 2006 19:04
Run Flat Tyres - Pezzer
Hmm, had a nail through my RFT on the motorway last month. No impact whatsoever to the car's performance (puncture on the rear) and I'm not sure I would have known unless the indicator had come on.
Carried on for another 10 miles to work, phoned lease co, drove down to KWIK FIT, will have one available in an hour sir. Drove back to work, and then returned later that afternoon when it was more convenient for me !

Fine by me, didnt even get my hands dirty !

P



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Fri 31 Mar 2006 19:18
Run Flat Tyres - Bill Payer
Carried on for another 10 miles to work, phoned lease co,
drove down to KWIK FIT, will have one available in an
hour sir. Drove back to work, and then returned later that
afternoon when it was more convenient for me !

On a lease car you could have just called Kwik Fit mobile and you wouldn't have even had to make the 2 journeys.
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