UPDATE: decided to take it on the interstate today to see how it handled,'cause it sucks on secondary roads.
I doubt if I have had it over 45mph before this because of the speedo. (just put this on the road the other day). I got up to what I figure was about 55mph. Traffic was passing me but not by a lot. I noticed that speedo needle was over by the 85mph, when I got off the ramp it dropped back just below the 5mph, I had a good stretch of road so I brought the speed back up....and watched the needle go backwards towards 85mph. Any thoughts. Had no affect on the tach.