Step 11: Mock up your motor mount

Picture of Mock up your motor mount
Next, you will need to make a cardboard mock-up of your motor mount, for a few reasons: cardboard is cheaper than metal, you can cut it with a knife, and you can shape it much easier than metal. If you bike will allow it, I would suggest mounting the motor behind the seat post like me, so that it will give you more room for batteries and keep the motor (and most of the spinning parts) out of the way of your legs.