I'm from Berlin / Germany and at the time i'm building my first motorized bike.
First succesfull test drive was today (finally!). I started with a Velor Timeshifter frame, I think this bike is only available in Europe... but it's a nice base for a boardtracker project. I'll post some more pictures and videos when it's done.
Here in Germany, motorized bicycles are just legal without a license plate when they are under 33cc and drive less than 20km/h
(~ 12.5 mph)... everything with more power needs a license plate; to get one it has to be checked by the TÜV which is very very expensive and nearly impossible to pass...
I can ride my bike on the street, but only when there's no police around
Anyway, just two motors are available here (49cc or 80cc) and a few parts like air filters and regeneration kits.
Greetings form Berlin
Camaro / Jonas