I'm toying with the idea of trying out the Mountain Tamer Quad chain-ring set-up:
Curious if anyone has tried it and if so what front derailleur you used. I've got to replace my front derailleur (munched it mountain biking) and have a couple of Sun Tour friction shifters kicking around...
This is for my touring rig ('88 GT Timberline) that I am looking at taking through some very hilly country later this month, but I also use the bike as my daily commuter where I do some long descents and am mostly in my big (currently 53 tooth) chain-ring throughout the 7 mile (each way) commute. I'd like to retain the high-end speed capability but add a super low end (20T) to handle hill climbs while loaded for touring - hence the interest in the Quad.