Originally Posted by X Ray
The rear disc brake assembly is located where the rear gear from the engine kit would need to mount. So I'm not able to use the engine kit on my bike without a shift kit.
I had this same issue with my Ironhorse I simply swapped the rear tire and added a simple V Brake system on capped off mounts. I didn't notice if you mention it but, what kind of bike are you using for the build?