I have this mini bike that I'm trying to ID, I haven't seen anything similar to it yet. It has a 5hp Detroit engine and a Albion 2 spd trans. Possibly from the Southern California area around 1970, that's when the engine was made. I think it might be a prototype since it's not finished and a lot of the joints are only tack welded. More info on the engine would be nice as well. Thanks