Hey there MBC, I love your site. I understand I need to introduce myself....... I am new to motorized bikes, but come from a very obsessive goped habit. I've very into making my own stuff, and have made my own stand up goped style scooter out of a Yamaha Jog scooter with the CVT. I'm really proud of it. Here's a shot http://www.capturedbyrobots.com/images/jogpedupdate.jpg I also build robots, I have a rock band entirely made up of robots that I made myself. They actually play all the instruments. Pneumatic powered. I tour all over the US and make my living with it. http://www.capturedbyrobots.com I'm going to be motorizing my bicycle soon, either with my Zenoah G23lh spindle driven, or I "might" use an extra G43l I have and mount a sprocket on the rear wheel, mounting the engine above the rear tire. Anyways, nice to be here.