After looking at a few Predator engines I was thinking of turning a bicycle into a motorcycle using a 212cc or larger predator engine and making it go at or close to motorcycle speeds of between 60 to 80 mph. Here's a list of what I was thinking of using for this possible project: 1: Predator 212cc, 301cc, 420cc, or 650cc EPA & CARB certified 4 stroke engine 2: EZ Motorbikes Qmatic transmission 3: (if possible) motorcycle gas tank 4: Jackshaft shift kit (if bike has gears) 5: all motorcycle grade lights like turn signals head light tail/brake light 6: motorcycle mirrors 7: motorcycle license plate bracket (probably axle mounted) 8: motorcycle horn 9: 12 volt motorcycle battery wired somehow to friction generator to power lights & horn 10: good sturdy moped wheels with good brakes I think that's petty much everything I would want in this build. The tricky part is finding the right bike for this kind of build that can fit a large Predator engine. I'm considering a Felt for this project because I hear nothing but good things about them and they seem to have lots of space for bigger engines and some Felt bikes are within my price range. If anyone has any tips or suggestions feel free to chime in.