Re: Hi I'm mike brooks
My personal advice would be to look up your local laws on motorized bicycles/mopeds. Many states consider them to be the same thing. You should speak with an attorney on legal issues if you plan to sell them out of your bike shop.
As for what you can learn here the sky and beyond is the limit. Lots of knowledgeable people here. I hope to be seeing some great builds from you soon.
Land Rider Jerry