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      02-24-2007, 06:30 PM   #27
NFS
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Drives: 335i m-sport LCI
Join Date: Jul 2006
Location: UK

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Quote:
Originally Posted by 335iman View Post
Whats the problem with the run flats. on road grip seems fine to me.
Anybody know any different. Mazda decided against using them on the RX8 & provided you with a puncture repair kit. Having owned a RX8 for 3 years and been on a driver experiance day with Prodrive who helped develope the car for the UK. They said that mazda could not get the performance they required . Have run fats moved on in the past 3 years.
When I had my e60 I spent quite a bit of time at e60.net.

Many people there felt that the runflats seriously degraded performance and ride quality. A large percentage were ditching them for traditional tyres.

In contrast to the e60 the e90 was designed to use runflats from the outset.

The motoring press slammed the runflats on the e60, but rarely got upset with them on the e90.

Having gone from a 530d SE with 19inch trad tyres to a 330i with 18inch runflats I am certain that the e90 grips, rides and handles better.

It may be that it would slightly improve with traditional tyres, but the runflats are not a problem, so I will probably never find out.
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