Originally Posted by
HillRider
Except the outside chain always remain on the same chain ring and isn't shifted. That's a weird synchronizing set-up. Why was it done that way?
That is awfully cool. I suppose it would not be difficult to arrange it similarily but with the synch chain on the granny ring and with useful big and middle chainrings. Or even better - use one of the 4th chainring adapters that used to be available and have a useful triple...
...might get a little crowded around the f. derailleur, though.