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      03-13-2012, 06:03 PM   #17
bimmer man
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Norway
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Drives: 640i Convertible, 420d xdrive
Join Date: May 2008
Location: norway, kristiansund

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2012 640i  [5.00]
Quote:
Originally Posted by cidair View Post
Thanks for all the inputs. Appreciate it.

But still one question - are there better grip with higher sidewalls ( same tire width ) when cornering hard like on a twisty road / race track?

Im thinking F1 wheels / tires. Huge sidewalls / tire flex, tire sticking to the asphalt better??????
I was talking about tires with BMW factory racing driver Stian Sorli at BMW driver training for 2 years ago. He said it is much better grip with 19 "than 20". But we ordinary drivers maybe not notice a difference?