Originally Posted by
Shahmatt
Since my compact is a Doval non-circular type, an IG crankset would not work as aligning the chainrings would be impossible.
The simple solution that would work is the seat tube or so-called suicide shifter mentioned above. Not as elegant as a down tube cabled shifter but it works, is rugged and would not add to the clutter above. Schwinn and other makers of popularly priced bikes successfully used them on numerous earlier generation bikes.
Otherwise a small hook as mentioned above that would require you to dismount and shift.