I just joined the forum in the past week and been searching a lot because I am very new to this whole concept. I first learned about motorized bikes while messing around on youtube. I saw something that really got me interested and now I want to put a 2 stroke engine on a superia huffy men's mountain bike that my friend let me have. The rear inner tube needs to be replaced but that's no biggie. I am doing a lot of research as to which kit to buy and which ones will actually fit. I am sure I will be posting a lot more when I have actually done some more research.