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					Originally Posted by Auf los!  Nobody has any hard info as to what the bulges might be for?  I don't think Porsche necessarily "invented" the bulges...I've seen them on too many wheels over the years.  But I thought maybe they were mentioned in some Porsche literature that someone may have read...or something... |  
  I believe they are for better grip when you are at speed and cornering hard, your hand won't slip down over the bump thus losing grip.  I think that is why they are also fatter than, say, '60s and '70s wheels or going back further to those large diameter thin wheels in Buicks and such.
 
  AKL
		 
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				'02, Arctic Silver/Graphite Gray, 2.7, TIP,  2nd cat delete, Charlie Chan muffler,de-ambered, Braille Battery, clear tailights, painted bumperettes, clear third brake light, M030 sway bars, F shock tower braces, clear rear deck, '03 side vents.    15mm spacers fore & aft.
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