Maybe you could fashion a constructeur-style FD that doesn't move. Then it'd be fairly light and keep the chain from going anywhere:
From
http://bikeville.blogspot.com/2010/0...erailleur.html
__________________
Originally Posted by
chandltp
There's no such thing as too far.. just lack of time
Originally Posted by noglider
People in this forum are not typical.
RUSA #7498