Again, it depends on what type of eBike you want to build. For people on the lower end of the handyman skill spectrum, there are super easy eBike conversion kits that come prepared with everything you need for installation without any extra modifications. You really only need a few wrenches and maybe a screw driver to install the entire kit in an hour or two. For people who want to get more creative and make some more custom or powerful eBikes, there are many options for you too. In my book I cover all these options as well as exactly how to plan your eBike to match your skill level.