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F10 / F11 (2011 - Current)
The new chapter in the highly successful story of the BMW 5 Series Sedan (F10) and wagon (F11)

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  #1  
Old 01-07-2013, 03:49 PM
syrhee81 syrhee81 is offline
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Location: Bellevue, WA, U.S.A.
 
Join Date: May 2012
Posts: 12
Mein Auto: BMW 528i
Low profile tires

I can't decide if I should go for larger wheels with low profile tires (275/30/20), which would be a significant change from my current ones (225/55/17). I love the looks of the larger wheels, but wonder if it will lessen the driving experience trying to avoid potholes and road imperfections.

I do live in the pacific northwest, so we have the occasional snow, lots of rain.. a few random potholes.. so really on the fence.. since the current 17s seem a bit dull and I've had them for two years, thus looking to change the tires anyhow.

Would love to hear from folks with large wheels and their experience with them.
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  #2  
Old 01-08-2013, 07:51 PM
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MSgtMel MSgtMel is offline
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Location: nicht zu hause
 
Join Date: Feb 2011
Posts: 608
Mein Auto: '11 535xi, '14 X1 28xi
Basics: The lower the profile the less air between you and the road = harsher ride and greater chance of blowing a tire in a hole or whatever.
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  #3  
Old 01-08-2013, 09:37 PM
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TGray5 TGray5 is offline
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Location: So. Calif.
 
Join Date: Jan 2002
Posts: 2,207
Mein Auto: '13 F10 550i; '13 R1200GS
I don't think it's a good idea...I lived in Seattle for 2 years a long time ago and my recollection is the roads aren't that great..you'll be adding a lot of unsprung weight to the car as well which will degrade handling and acceleration, although the lower profile will help handling a little bit. Perhaps you have a spare tire, but if not, that is an issue as well. Expect to have to deal with a bent wheel or bubbled tire at some point if you go with 20s. You'll likely have to roll your fenders to get a 275 width as well. I went from 16's to 18's on my e39 non sport 540 and it was a nice upgrade and wasn't too harsh but the roads are pretty good by me.
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Old 01-08-2013, 09:39 PM
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TGray5 TGray5 is offline
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Location: So. Calif.
 
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Mein Auto: '13 F10 550i; '13 R1200GS
One other point...your car is going to look jacked up without also lowering the suspension if you go from 17's to 20s....of course the car isn't any higher but the optics of the low sidewall in that same fender now shows a huge gap and makes the car looked jacked up...so, it's kind of a slippery slope.....
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