Ok so it was my understanding that the SVT 16" Wheel has a XXX/55R16..... yes, no?
I was looking in a tire sizing book and it showed the stock tire sixe to be a XXX/50R16
BUT another book shows that it's XXX/55R16
I put focus 16's on my tour last winter after i dented 2 rims at once (gotta love ohio roads), but anyways i put a 205/55R16 on the wheel. (as listed on a plus sizing guide in that same book that listed a XXX/50R16 as a stock size)
By doing this did I throw off my speedo, b/c both sets of info contradict themselves.

SeSportV 1999 Silver Contour SE Sport MTX (2.5) Air Intake Resonator Removed Silver Rear Valence Blue Turn Signals, Nozzles, Interior LED's Custom Blue Trim Single Silver Wiper (Bad A** and Unique) 15.9 1/4 mile @ 89 MPH