Originally Posted by Bikeguy Joe
The reason the chain falls off can be several reasons- One the chain is too tight, pulling the tensioner over sideways. Also, improper chain alignment will not help.
You can drill a small hole through the tensioner and chainstay and put a small sheet metal screw through it.
The Dax tensioner with the bearing in it is a pretty good one, once set up properly.
got any pictures of these suggestions? i'm not good with mechanical terms. i'm more of a picture guy. thanks for your help!!