My friend is needing something to get to work. Its 17 miles away from his house. He doesnt have a license. I know some of you will say the best solution is for him to get one. But hes is trying to decide between a moped or a motorized bicycle. The moped he is looking at is a 1978 Motobecane 50cc 50v Moped. They are selling it for 500. Now to the question. Will he benefit more from using this moped or buying a 66cc motor kit and installing it to a bike to use as transportation? Oh, and he is a heavy set dude. 6'1 300 pounds. Solid but still kind of fat.