RFT on '08 550 with Sport package
01-27-2009, 08:18 AM
#11
Senior Members
Join Date: Sep 2006
Location: Connecticut, USA
Posts: 392
Likes: 0
Received 1 Like
on
1 Post
My Ride: 07' 550i sport; Sapphire Black/Auburn; sport package; steptronic; navigation with R.T.T.I.; heads up; cold weather package; Logic-7; BMW MOST ipod kit; Motorola V3 snap-in adapter; rear heated seats and rear shades; anthracite headliner; sirrius sat. radio; M-aero kit; OEM style 166 Wheels with 245/35-19 front and 285/30-19 rear Michelin PS2s.
Originally Posted by DD_545i' post='778386' date='Jan 27 2009, 10:52 AM
That's unlikely to be the reason, RFTs handle better than regular tyres. I saw on German TV this weekend an extensive test of RFT vs non-RFT and the RFT out-performed on every performance test (handling, braking, and of course the high speed nail-strip induced blowout without damage to the rims). The non-RFT only gained back some points by being quieter, 20% cheaper, and by giving a slightly softer ride (which is only noticeable if you have over-sized rims and hard suspension - with standard suspension you would barely notice a difference in the ride quality).
I'm running RFTs in summer on 18s and in winter on 17s with standard suspension, standard ride height and very pleased with the combination. I'll be paying the 20% premium to keep RFTs when my tyres need replacing.
I'm running RFTs in summer on 18s and in winter on 17s with standard suspension, standard ride height and very pleased with the combination. I'll be paying the 20% premium to keep RFTs when my tyres need replacing.
Non-run flats ride better and perform better in the rain (again due to better tire flex).
This comes from personal experience. My 550 now has the 19 inch non RF Contis. My 07' 550 sport came with the 18 inch RF Dunlops.
IMHO, the more newly designed BMW suspensions, i.e. E90 3, E70 X5, X6 etc.. have integrated the run flats into the suspension equation much more successfully. Better ride quality
DRP
01-27-2009, 08:29 AM
#12
Contributors
Join Date: Nov 2008
Location: Europe
Posts: 1,594
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by 550isport' post='778468' date='Jan 27 2009, 06:18 PM
I'd be absolutely shocked if a run flat outperformed its non run flat counterpart.
Just reporting what the German car show concluded when they tested them on slaloms, braking, cornering and the high-speed blowout. They practically said if you don't mind the slight increase in noise, and slight increase in ride firmness, and you can afford the 20% premium, then buy them. I wish I still had the video of it but it was deleted from the wife's german DVR (and no it's not like my TiVo with TiVoWeb so we can't undelete).
01-27-2009, 06:25 PM
#13
Senior Members
Join Date: Sep 2006
Location: Connecticut, USA
Posts: 392
Likes: 0
Received 1 Like
on
1 Post
My Ride: 07' 550i sport; Sapphire Black/Auburn; sport package; steptronic; navigation with R.T.T.I.; heads up; cold weather package; Logic-7; BMW MOST ipod kit; Motorola V3 snap-in adapter; rear heated seats and rear shades; anthracite headliner; sirrius sat. radio; M-aero kit; OEM style 166 Wheels with 245/35-19 front and 285/30-19 rear Michelin PS2s.
Originally Posted by DD_545i' post='778494' date='Jan 27 2009, 12:29 PM
Be shocked, be absolutely shocked
Just reporting what the German car show concluded when they tested them on slaloms, braking, cornering and the high-speed blowout. They practically said if you don't mind the slight increase in noise, and slight increase in ride firmness, and you can afford the 20% premium, then buy them. I wish I still had the video of it but it was deleted from the wife's german DVR (and no it's not like my TiVo with TiVoWeb so we can't undelete).
Just reporting what the German car show concluded when they tested them on slaloms, braking, cornering and the high-speed blowout. They practically said if you don't mind the slight increase in noise, and slight increase in ride firmness, and you can afford the 20% premium, then buy them. I wish I still had the video of it but it was deleted from the wife's german DVR (and no it's not like my TiVo with TiVoWeb so we can't undelete).
To each his own...
DRP
01-30-2009, 10:54 AM
#14
Members
Join Date: Jan 2007
Location: Belgium (now)
Posts: 129
Likes: 0
Received 0 Likes
on
0 Posts
My Ride: '05 525i
what are the best RFT at the moment? I had my Bridgestone RE050 for 4 seasons and need to replace those in a month or two.
Would RE050A still be the best?
Would RE050A still be the best?
Thread
Thread Starter
Forum
Replies
Last Post
zio
Complete Car Sales
3
06-18-2015 04:42 PM
TexaZ3
Complete Car Sales
17
05-06-2015 09:54 AM