Completely Different Bicycle Problem...
 

This got killed, and I am not sure why, but tenacity will win the day.

Okay, here's the problem.

I need to have a bicycle chain interact with either a cog, sprocket or chain wheel...whatever you want to call it.

The chain is built, the cog is built and the pedals work.

I would imagine that it would be done via a path, with the chain following said path. However, I would like the pedals to drive the chain, via dynamics...if possible.

Any suggestions or ideas. Are there any tutorials or case studies that anybody knows about?

Thanks in advance!