Originally Posted by Eggplant Jeff
I was thinking I would simply leave my existing rear derailer as the chain tensioner... just fix it in position (side-to-side) and disconnect it. Any reason why that wouldn't work?
That'll work fine. Set the limit screws to hold it in place and rock out. The only issue is that the bend adds more friction to the system. If you can arrange it so that the chain only engages one jockey wheel you'll probably be happier though it might look stupider.