I have been exploring options to add a front derailleur and crank-rings to a 7-speed Giant Suede so that I can have more speed options. Right now I find myself riding mostly in 7th gear with a top speed of about 15 mph on a relatively flat road. My 61 yr old legs cannot pump muchfaster, but I have plenty of power.

The big problem with what is normally a pretty simple change is the crank-forward design that has the seat post about 6 inches behind the bottom bracket leaving no place to mount the derailleur. I looked into changing the rear hub to a S-Ram 3-speed w/8 gear cassette, but that costs about as much as a new bike. Has anyone had any experience or thoughts about using a bottom-bracket mount front derailleur on this bike?