Here's a tricky installation. A new Kona Stinky with a 73mm BB that has a curving front downtube. Most mid drives won't fit a frame like this. I make a special extended lower mount bracket that fits the curving frame tubes.
Hi Joe- Thanks for the mention. I started with the GNG kit. The Bafang kit has a much smaller motor and it's all one unit, like a component stereo with turntable, cassette deck, CD player, etc. I don't even use the GNG motor any longer. In looking for a motor supplier in China I found two nearly...