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7 Series - E65 / E66 (2002 - 2008)
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  #1  
Old 03-24-2010, 09:11 AM
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Exclamation What is the optimal tire size for 21?

I was wondering what is the biggest tire size that you can run on 21ís without rubbing?
I would like to know front and back tire sizes.

Thanks.
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  #2  
Old 03-24-2010, 12:29 PM
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bump.
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  #3  
Old 03-24-2010, 12:37 PM
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  #4  
Old 03-24-2010, 12:40 PM
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255-35-21 and 295-30-21
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e65 745i aw sport,21's aib's acspedals& rf splr(sold)
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c5 Corvette 6sp,z51,2"drp,19"ccw'sshrt shft,corsa exh,dd nav
e53 X5 3.0, pana rf,nav,xenon,cldweather, premium.ipod hookup, 20"4.6rims staggered 315rrs.
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  #5  
Old 03-24-2010, 12:46 PM
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So far I found these combos that people run. I want to know which one is safest in terms of damaging tire or disk. I also dont want to have any rubbing.

255-35-21
295-30-21

245/35/21
285/30/21

255/30/21
295/25/21
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  #6  
Old 03-24-2010, 12:52 PM
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Mein Auto: E65 750i Sport,C5 z51 e46
last set is wrong 1st set is the widest and the middle is what bmw recommends.
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[SIGPIC]
e39 540i sport, acs type 2's chrome, acs spler pdls,Euroclrs
e65 745i aw sport,21's aib's acspedals& rf splr(sold)
e46 328i Prem Aw18" 335spt whls(sold)
c5 Corvette 6sp,z51,2"drp,19"ccw'sshrt shft,corsa exh,dd nav
e53 X5 3.0, pana rf,nav,xenon,cldweather, premium.ipod hookup, 20"4.6rims staggered 315rrs.
e65 750I aw, sport. chrome21's,acs pdls,acs rfsplr,mtecs,8k hid fogs,Leds.oem ipod&sirius
Srt10 VIPER, 19-20" rennen forgedwheels,tune,exhaust,intake.
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  #7  
Old 03-24-2010, 12:55 PM
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Quote:
Originally Posted by 1bad540 View Post
last set is wrong 1st set is the widest and the middle is what bmw recommends.
do you have any issues with your setup?
255-35-21
295-30-21
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  #8  
Old 03-24-2010, 12:58 PM
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bogan bogan is offline
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Quote:
Originally Posted by 1bad540 View Post
last set is wrong 1st set is the widest and the middle is what bmw recommends.
What tire pressure do you use? It probably should be different from BMW recommended because of low profile tires.

Thanks.
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  #9  
Old 03-24-2010, 01:38 PM
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1bad540 1bad540 is offline
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Mein Auto: E65 750i Sport,C5 z51 e46
No issues Im also on my 2nd set in this size, i run 37lbs
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[SIGPIC]
e39 540i sport, acs type 2's chrome, acs spler pdls,Euroclrs
e65 745i aw sport,21's aib's acspedals& rf splr(sold)
e46 328i Prem Aw18" 335spt whls(sold)
c5 Corvette 6sp,z51,2"drp,19"ccw'sshrt shft,corsa exh,dd nav
e53 X5 3.0, pana rf,nav,xenon,cldweather, premium.ipod hookup, 20"4.6rims staggered 315rrs.
e65 750I aw, sport. chrome21's,acs pdls,acs rfsplr,mtecs,8k hid fogs,Leds.oem ipod&sirius
Srt10 VIPER, 19-20" rennen forgedwheels,tune,exhaust,intake.
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  #10  
Old 03-24-2010, 02:06 PM
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Quote:
Originally Posted by 1bad540 View Post
No issues Im also on my 2nd set in this size, i run 37lbs
Thanks!
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  #11  
Old 03-24-2010, 04:42 PM
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I was looking to pick up this set.

FT-28195102 Falken Tires FK-452 255/35ZR21 98Y RF 126.52 253.04
HT-1009517 Hankook Tires Ventus V12 evo K110 285/30ZR21 100Yxl BW HWY 199.62 399.24
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  #12  
Old 03-24-2010, 05:23 PM
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The Hankook's are not avail untl May-June... you will wait a while before they come...
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