Guys (and gals),
After reading the Rotax website, I got confused about the real "ownership" of the Aprilia V990 engine. Yes, I know that Rotax builts these engines, but I was under the impression that they were designed by Aprilia or Aprilia/Rotax and built by Rotax. That was why the V990 engines were used only on Aprilia bikes. Also, I thought the patented counter balance design was from Aprilia.
The Rotax website site lead me to believe that the V990 is Rotax, although they show a pic of an Aprilia Mille (italian for thousand).
Thanks for any clarification. Just for my own information, no more than that.