Hey, I heard about doing this kind of stuff from a friend and i started to look into it further and arrived here. I am interested in putting my old weed whacker or lawn mower motor on to my mountain bike. The only problem is my very limited knowledge of motors, the parts involved and certain skills such as welding. Would a fairly simple project like this, compared to your seemingly complex designs, be too much for someone like myself? The main reason i would be doing this project is to learn more about this kind of stuff, and have a badass bike .