I have an old Cannondale road bike with Suntour shifters.
When I shift from the front middle ring to the small inner-most ring, the chain falls into the gap and binds tightly between the two rings. The chain seems to be an appropriate width for the back cassette and there doesn't seem to be anything that I can tighten to close the gap between the two rings (the two are screwed together and seem tightly affixed to one another).
Aside from not using the inner-most ring, I'm at a loss for what to do. Any ideas (aside from a fixie)?