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      12-01-2011, 09:53 AM   #6
HighlandPete
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Drives: BMW F11 535i Touring
Join Date: Mar 2007
Location: Scotland, Highland Region

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Are they winter run-flats? My thinking, winter tread blocks along with a stiffer sidewall could be the reason for extra sound levels, shame they have a speed related harmonic issue. Reason to slow down in winter driving.

HighlandPete
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