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      02-17-2016, 12:01 PM   #1
2011z435is
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Mixing Run Flats w/ PSS

I bought a 2011 z4 sdrive35is about 6 months ago and it looks like the OEM run flats in the rear will be needing replaced soon while the ones up front still have plenty of life left.

Now I know ideally all 4 tires should be the same brand/type, but would it be possible to replace the rears w/ non run flats... like the Michelin PSS and wait until the fronts run out of tread to replace those with non run flats as well?

thanks for the input
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      02-17-2016, 01:20 PM   #2
paris1
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This was just discussed here a week ago:
http://e89.zpost.com/forums/showthread.php?t=1223570
As I suggested in that thread, either find a couple of used RFTs (they're quite easy to find and reasonably priced on the internet; mainly because nobody wants them!) or just bite the bullet and replace all with non-RFT. You won't believe the difference! Remember the old drinking adage "Never mix, never worry".
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      02-22-2016, 08:54 AM   #3
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I wouldn't. RFT have stiffer side walls. The combo would more than likely make for a pretty interesting ride especially at hard cornering and braking.
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      02-22-2016, 01:25 PM   #4
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Where are you? I might switch to non run flats, can prolly sell you mine for cheap if you're in the LA area
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      03-09-2016, 09:18 AM   #5
rking117
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Quote:
Originally Posted by paris1 View Post
This was just discussed here a week ago:
http://e89.zpost.com/forums/showthread.php?t=1223570
As I suggested in that thread, either find a couple of used RFTs (they're quite easy to find and reasonably priced on the internet; mainly because nobody wants them!) or just bite the bullet and replace all with non-RFT. You won't believe the difference! Remember the old drinking adage "Never mix, never worry".
you most definitely want to read my post in there.
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