I am recovering from a herinated disc. I am determined I won't revisit this pain again. I have contemplated riding a bike to get myself in shape. But I am not sure if it is a good idea to ride a bike with that. Has anyone ever had to face this situation before and if so, would like opinion? Also, if you feel it is a good idea, what would be the best bike to start out with? At the moment, I do not have a bike. Thank you.