drive

Ok, so I've never built a chain driven bike before and I have a question concerning the sprockets on the rear wheel. How can I keep the pedals attached and functional while adding another sprocket to the back wheel for the engine to drive? If I just slap another sprocket on it, It would still...

Hey all, I recently got a 66cc motor up and running on a mountain bike frame. I love it, but there is one thing that I wish I could change: I hate the fact that my whole drivechain rotates no matter what. I am trying to find a way to disconnect the chain so that during long downhills...