RFT's + Rain = accident waiting to happen
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Joined: Jan 2005
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From: San Jose, California, USA
My Ride: 2008 Porsche 911 Carrera S Convertible. Midnight Blue, 6 Speed.Retired - 2007 997 Carrera S, Midnight Blue, Grey leather, premium audioRetired - 2007 550i, Monaco Blue over Beige, Navigation, Logic 7, Cold Weather Pack, Comfort Access, Sport Package
Model Year: 2008
Another question before hitting that button -
those of you have that have changed, has your Flat Tire Monitor played up? I've been told that the normal sidewalls/tyres flex a lot and this can cause the "false alarm syndrome" to run riot!!
Looking at Hankook V12's at the mo....
those of you have that have changed, has your Flat Tire Monitor played up? I've been told that the normal sidewalls/tyres flex a lot and this can cause the "false alarm syndrome" to run riot!!
Looking at Hankook V12's at the mo....
Also, for what it's worth, it was the appalling wet weather performance of the stock RFTs that was one of the primary drivers behind my switch to standard tires. The RE050A was terrible in the wet and particularly when ambient temperatures were (relatively) low.
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Joined: Jan 2010
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From: Oxford, UK
My Ride: BMW
Okay I have a 530D M Sport which came with the 18" 135 alloys and runflat tyres as standard, I ran them for a while with no issues, but when it came to change I went with 'normal tyres' which made the car feel better imo and still no issues.
However I only use the 135's now as my winter rims and run 19's mainly now.
However I only use the 135's now as my winter rims and run 19's mainly now.
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Joined: Aug 2008
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No PS2's in stock!! So went for Hankook V12 110' and BC gave me a 5% discount for the trouble too 
Ride: Improved a lot - I would say 1/3rd better than before and the car now floats a little more, but overall the "stoney/gravelly" feel through the steering has reduced by 80%!!
Handling: Boy what a difference! Turn in is sharper, no more tram lining when braking, and totally composed under accel
Road Noise: What road noise - so much quietr than those NCT5 RFT's.
All in all chuffed...
Ride: Improved a lot - I would say 1/3rd better than before and the car now floats a little more, but overall the "stoney/gravelly" feel through the steering has reduced by 80%!!
Handling: Boy what a difference! Turn in is sharper, no more tram lining when braking, and totally composed under accel
Road Noise: What road noise - so much quietr than those NCT5 RFT's.
All in all chuffed...
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Joined: Dec 2007
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From: The State of Southern NJ!
IMHO running any tire, with 1/8" of tread depth, aggressively in the rain is trouble looking for an opportunity to happen - RFT or not!
As far as retro-fitting you have most of the answers you will need should you desire to make the change. FYI, I run my Summer UHP RFT Bridgestones until the cold weather sets in and then I switch out for (conventional) General UHP All Seasons on CSL's on my '07 530xi. I do notice a slightly softer ride on the Generals but I think it's due more to the tire's design characteristics. I'm sure there are tires out there with stiffer sidewalls - though none as stiff as is necessary with a RFT design.
As far as retro-fitting you have most of the answers you will need should you desire to make the change. FYI, I run my Summer UHP RFT Bridgestones until the cold weather sets in and then I switch out for (conventional) General UHP All Seasons on CSL's on my '07 530xi. I do notice a slightly softer ride on the Generals but I think it's due more to the tire's design characteristics. I'm sure there are tires out there with stiffer sidewalls - though none as stiff as is necessary with a RFT design.
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