I'm considering my options on the new car I want to get which is either going to be an E90 or an E92, leaning towards an E92 at the moment. One thing I am in doubt about are the relative ride quality issues ascociated with run flats on this car. The SE versions of the car seem to normally come with 17" wheels, which from what I can gather are not too bad given the suspsension is set up for run flats on these cars. I heard however that the 18" wheels on M Sports are getting towards the teeth loosening end of things. Now there is one near me which looks just the job but has 19" wheels. Prior to me actually seeing for myself how the ride varies between these cars, does anyone here have any experience of the effects of these different wheel sizes with run flats, partiularly the 19"?
Run flats - How harsh are they really?
- Thread starter Bubo
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My dad has a 3 series SE with the run flats, and doesnt seem to have a problem with them, and i havent found the ride to be hard or uncomfortable when i have been in it either.
That seems to fit in with what I've heard, i.e. 17" wheels being ok. I'll probably end up fitting non run flats myself when it comes to it. To those that do run with normal tyres, do you rely exculsively on tyre weld or do you keep a spare in the boot anyway?
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I have no idea what he has in the boot with regards to tyre weld etc, sorry. but yes he has the standard 225/45/17 alloys. his is the 318i SE Business Edition
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I changed the RFT's on the Z4 to regular tyres and it transformed the ride and handling of the car. Massively better. In the boot is a BMW M Mobility Pack, which is what the M cars without runflats or spares get - it's basically a pump and a can of sealant. It was £130 from BMW.
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Dad's got runflats on his LCI E60 M-Sport touring, and will be keeping them.
Lots of people will scream 'ZOMG Sport suspension + RFT = Bone Crunching' but I can't say I've noticed it being particulary bad (and the roads round here are crap) though maybe both of us are used to the rock-solid track suspension setup of the Westfield and ofcourse the BMW feels really soft in comparison...
Lots of people will scream 'ZOMG Sport suspension + RFT = Bone Crunching' but I can't say I've noticed it being particulary bad (and the roads round here are crap) though maybe both of us are used to the rock-solid track suspension setup of the Westfield and ofcourse the BMW feels really soft in comparison...
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Same, but on a Pre-LCI E61.
I don't find them crashy or unpredictable at at all. When the time comes to change them I might put non-RFTs on, but that will be a purely economic decision.
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Never used to bother me on my '05 120d Sport when I had it.
Has anyone who has changed to non run flats considered this http://www.realoem.com/bmw/showparts.do?model=WD12&mospid=50161&btnr=36_1274&hg=36&fg=95
I'm thinking for long runs it might be an idea to keep one of these in the boot, or have it for when you've repaired a puncture with tyre weld and just want a wheel to put on when you get home while you get the flat checked for a repair.
I'm thinking for long runs it might be an idea to keep one of these in the boot, or have it for when you've repaired a puncture with tyre weld and just want a wheel to put on when you get home while you get the flat checked for a repair.
The LCI 5 series had a fair amount of suspension revisions to improve ride quality. a lot of people find they ride worse with normal tyres which is the oposite to the pre LCI which was pretty crashy and could make people feel sick in the back.
I've heard this too. The runflats on my pre-LCI e60 seem to make the ride a bit crashy, although I haven't tried one without runflats to compare. It doesn't really bother me but my girlfriend starts complaining if the roads aren't perfectly flat.
I'll probably try non-RFTs somewhere along the line, mainly because they supposedly last longer and are much cheaper.
Depends.
Run flats on 325ci, 535d and Audi TT I've experienced were fine. Nice smooth drive.
Run flats on a Mini Cooper gives it a REALLY harsh and bumpy ride. You feel every bump in the road. You could be doing 30mph and it feels like your doing 45!
Run flats on 325ci, 535d and Audi TT I've experienced were fine. Nice smooth drive.
Run flats on a Mini Cooper gives it a REALLY harsh and bumpy ride. You feel every bump in the road. You could be doing 30mph and it feels like your doing 45!
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the ones on the audi tt will probably be self sealing tyres, and they do not have such a hard sidewall like the typical run flats