Yeah, but I bet it's not two stroke. Anyway, this link from the Suzuki site looks like it. The tech narrative describes an "advanced Suzuki Electronically-controlled Continuously Variable Transmission for convenient operation and incredibly smooth performance.". This sounds a lot like the old("real old") Buick Dynaflow transmis- sions from the 60's. The used hydraulics to dynamically change the gearing ratios very incrementally. But, you could never detect any shifting. However, this Suzuki model sounds like it does the same thing, just electronic rather than hydraulic. Thank, for the info... Gary [URL]http://www.suzukicycles.com/Products/AN650K4/Default.aspx[/URL]