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Old 05-17-2012, 04:57 PM
ARM3N ARM3N is offline
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Location: SoCal
 
Join Date: Feb 2012
Posts: 18
Mein Auto: E36 M3
well the stock size is 235/40/17
whats the "bigger" size on now?
this website can tell you if the tires are causing a change in your speedometer reading and if its more or less.

http://www.miata.net/garage/tirecalcold.html

hope that helps
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