I Really like it, nice simple and clean looking great job. Any pic's of the mount with out the engine and gas tank? How do you engage and disengage the engine? I think I might want to try and build one. You make it look so easy, again great job!
I will try and get pics this week. I would find a old go-ped sport frame and cut back section to save time. I have a spring in my seat down tube raise motor. the quick release for the seat post is my lock. Will explain more with pics.