I am an ex bmw motorcycle tech. I race vintage class solo bike & sidecar. Both are bmw. I am new to the scooter scene and just have rebuilt & hotrodded out a 1964 lambretta Li 125 Now a 190... Reciently graduated from the Rhode Island School of Design. (was an older returning student). I now have a 1980 Sach Prima G3.,, or so it says on bike.