Originally Posted by Billy1981
I'm not sure what I want to build. I want a vintage style bike in the style of E. R. Thomas, but I don't know where to start. Can I just buy any bike and put a motor on it? I'm about 250# so would I need a bigger motor? Thanks
You will need a good bike frame.
You didn't mention your riding needs like duration and number of trips per day or terrain so motor and drive train type and budget to fit you are still unknown so all tips are useless as different types fit different needs and budgets.