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Runflats saved my bacon today...

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Old 10-19-2006, 02:39 PM
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Originally Posted by red-max' post='346809' date='Oct 19 2006, 03:34 PM
From what I can tell, and it's not very scientific, just my own observations, Run Flat Tyres are thankfully getting better.

The original RFTs on my 2004 530d were terrible. Admittedly I didn't have the car from new, but at just beyond 1/2 worn they were awful. My wife's original MINI Cooper S had RFTs and they were like driving with solid wooden wheels and no suspension. I swapped my Run-flats out for normal tyres, she kept hers because she felt safer knowing she could drive home if she had a flat.

Just recently we changed the MINI for a newer one, and what a difference. Presumably they are newer generation runflats, perhaps MINI also tweaked the Cooper S suspension, but it certainly drives much more like a normal (sporty) car.

I just test-drove a 335d Coupe, with 19" wheels and quite low-profile RFTs, and I was surprised by the ride and feel of the suspension/tyre combination - it was really very good. Again I suspect these are latest generation Run-flats with suspension specifically designed for RFTs.

I ended up ordering a 335d, so starting in December I will find out for myself how they are in the real world. Since the E92 335d has no room at all for a space-saver, I am probably stuck with RFTs for the length of time I own the car. My main concern actually is that I've heard that some of the new sizes are hard to get (3 or 4 day lead times, or more) which could pose a problem if I need to replace a tyre in a hurry. I did think of buying and keeping a spare RFT tyre in my garage, but while this might work for a MINI, the 335d Coupe has different sizes front and back, so that's not going to work unless I buy one of each size, and that's getting expensive...
The E90 has suspension geometry better suited for RFs. The technology has improved but they are still harsh over bad pavement on the E60 with SP
Old 10-19-2006, 02:40 PM
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2 run flats = an entire set (4) of 20" nitto 555's tires...eeek those RFT are pricey!
Old 10-19-2006, 04:48 PM
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So....What kind of car did the keys fit?

Needs to know the details!
Ray Hull
Old 10-19-2006, 08:13 PM
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Originally Posted by Ray Hull' post='346843' date='Oct 20 2006, 08:48 AM
So....What kind of car did the keys fit?

Needs to know the details!
Ray Hull
you lost some keys?
Old 10-19-2006, 08:16 PM
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Originally Posted by red-max' post='346809' date='Oct 20 2006, 06:34 AM
From what I can tell, and it's not very scientific, just my own observations, Run Flat Tyres are thankfully getting better.

The original RFTs on my 2004 530d were terrible. Admittedly I didn't have the car from new, but at just beyond 1/2 worn they were awful. My wife's original MINI Cooper S had RFTs and they were like driving with solid wooden wheels and no suspension. I swapped my Run-flats out for normal tyres, she kept hers because she felt safer knowing she could drive home if she had a flat.

Just recently we changed the MINI for a newer one, and what a difference. Presumably they are newer generation runflats, perhaps MINI also tweaked the Cooper S suspension, but it certainly drives much more like a normal (sporty) car.

I just test-drove a 335d Coupe, with 19" wheels and quite low-profile RFTs, and I was surprised by the ride and feel of the suspension/tyre combination - it was really very good. Again I suspect these are latest generation Run-flats with suspension specifically designed for RFTs.

I ended up ordering a 335d, so starting in December I will find out for myself how they are in the real world. Since the E92 335d has no room at all for a space-saver, I am probably stuck with RFTs for the length of time I own the car. My main concern actually is that I've heard that some of the new sizes are hard to get (3 or 4 day lead times, or more) which could pose a problem if I need to replace a tyre in a hurry. I did think of buying and keeping a spare RFT tyre in my garage, but while this might work for a MINI, the 335d Coupe has different sizes front and back, so that's not going to work unless I buy one of each size, and that's getting expensive...
19" RFT.
Did not know that they did them.
what`s the cost of these tyres? $700 each?
Old 10-20-2006, 02:17 AM
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Originally Posted by pinguhk' post='346907' date='Oct 20 2006, 05:16 AM
19" RFT.
Did not know that they did them.
what`s the cost of these tyres? $700 each?
Hmmm... good question. I'm fairly sure they're all RFTs on the 335, but I didn't actually check the car I drove. It definitely had no spare though.

From the UK pricelist the 19" wheels are:

Star-spoke style 230
8J x 19 / 9J x 19
225/35 R19 / 255/30 R19

I can't find any online suppliers with RFTs in these sizes (only tried for about 10 mins though).

I actually ordered the 18" wheels for my car which are:

Star-spoke style 189
8J x 18 / 8.5J x 18
225/40 R18 / 255/35 R18

and these are available on Tire Rack, though the larger rears are on "back order"...

Runflats saved my bacon today...-18inch_rfts.jpg
Old 10-20-2006, 03:12 AM
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Originally Posted by red-max' post='346809' date='Oct 19 2006, 11:34 PM
From what I can tell, and it's not very scientific, just my own observations, Run Flat Tyres are thankfully getting better.

The original RFTs on my 2004 530d were terrible. Admittedly I didn't have the car from new, but at just beyond 1/2 worn they were awful. My wife's original MINI Cooper S had RFTs and they were like driving with solid wooden wheels and no suspension. I swapped my Run-flats out for normal tyres, she kept hers because she felt safer knowing she could drive home if she had a flat.

Just recently we changed the MINI for a newer one, and what a difference. Presumably they are newer generation runflats, perhaps MINI also tweaked the Cooper S suspension, but it certainly drives much more like a normal (sporty) car.
This is what BMW did wrong... They developed the E60 and then at the last minute some executive at Dunlop played golf with some executive at BMW and they bought a load of Runflats without actually tuning the suspension for the car...
Old 10-20-2006, 03:18 AM
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Originally Posted by red-max' post='346975' date='Oct 20 2006, 11:17 AM
Hmmm... good question. I'm fairly sure they're all RFTs on the 335, but I didn't actually check the car I drove. It definitely had no spare though.

From the UK pricelist the 19" wheels are:

Star-spoke style 230
8J x 19 / 9J x 19
225/35 R19 / 255/30 R19

I can't find any online suppliers with RFTs in these sizes (only tried for about 10 mins though).

I actually ordered the 18" wheels for my car which are:

Star-spoke style 189
8J x 18 / 8.5J x 18
225/40 R18 / 255/35 R18

and these are available on Tire Rack, though the larger rears are on "back order"...

Attachment 24932
Yes, 19" tyres are available in RunFlats - very limited sizes... However, I know the 5-series 'approved' 19" sizes (245/35/19+275/30/19) are available! :thumbsdown:
Old 10-20-2006, 03:30 AM
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Originally Posted by colejl' post='346985' date='Oct 20 2006, 07:18 PM
Yes, 19" tyres are available in RunFlats - very limited sizes... However, I know the 5-series 'approved' 19" sizes (245/35/19+275/30/19) are available! :thumbsdown:
Like to see the price for these
Old 10-20-2006, 07:56 AM
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Originally Posted by pinguhk' post='346987' date='Oct 20 2006, 12:30 PM
Like to see the price for these
Rears UKP270 each and fronts UKP246 each + fitting... So about UKP1,100 for a set!


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