I dont know if this in the right place, but I live in a small town in alabama and I recently bought a bicycle ( haven't owned one in a few years). anyway I got tired of pedaling after a day or so and I just had knee surgery. anyway I think up putting a chainsaw motor on it, never seen a bike like this but found this site looking around. so I pick up a chainsaw for 50 bucks at a pawn shop its about 50cc I think, mcculloch timber bear with a 20in bar. pull start was saftywired on and then the clutch breaks before I get to ride the bike. so I changed it from a sprocket to friction drive so i can push start it. get everything mounted up ready for a test ride sure enough it runs beautifully. Faster than I expected, down hill you can hit the power band and get up est. 40+ ( we were passing cars ) anyway I get ready to make my first trip its maybe a mile round trip so I get on ( still no chain attached so I get a little push and im off) I get almost to my destination I come around a turn and who do I see but a cop (well I soon learn hes a detective ) im not wearing a shirt or helmet which on a bicycle would be ok, but I keep riding not to fast hoping he wont follow but he gets in his car and pulls me over tells me hes about to wright me 6 tickets for no lights, turn signals, helmet, motorcycle license, registration, insurance all that good stuff. I tell him I didnt know what i was doing was illegal I figured under a certain cc's and its assisted I would be legal but in alabama any motorized vehicle must have all of those things. he let me off with a warning and now im pedaling again.