Well, I started to put the single speed back together and ran into a situation. The dropouts on the vintage schwinn's don't have a option to mount a tensioner. But I tried to just visualize the length the chain would need to be to run without one and it seems to be either too much chain to be tight with the wheel fully slid back in the dropout. So is there any sugjestions on a tensioner that will work, or what have others done in this delima. I posted a pic so you can see my problem.