So I'm starting to plan a new e-bike build with the idea of taking the pedals completely off and connecting a motor straight to the crank shaft. The reason I want to do it that way is so I can use the existing gears on the bike as a sort of transmission. I haven't really been able to find anything about how to connect the motor in this fashion, so I thought I'd post here. If anyone has any ideas or tips I would love to hear them.