I know, I know, singles are supposed to be rigid and painful but I have an idea anyway. Has anyone ever heard of or tried out a single with a suspension? maybe like 5" of travel. I know their are inherent problems with the chain but what about designs that pivot around the bottom bracket shell? Could you use a bike with this design, add an old derailer to hold a little extra chain and make it work? I'm getting a little sick of adjusting the tranny on my all mountain bike and often take my single out just for simplicities sake.