Porsche Wheel Fitment Guide 2012 - Version 1.0 With the expertise and knowledge in Porsche wheels, Porsche-info.com and Wheel Dynamics U.S. teams up to bring you the latest Porsche application fitment guide for 2012. From Porsche different off-sets, back-spacing, center-bore, lug-seat and back-spoke clearances, the Porsche Wheel Fitment Guide 2012 is the only application guide you will ever need.Visit the Porsche-info.com website for more information or download now!!!