Joined: Oct 2013
Posts: 600
Likes: 159
From: In a boat
Bikes: 1990 Specialized Sirrus Triple, 1985 Trek 460, 2005 Lemond Tourmalet, 1984 Schwinn LeTour 'Luxe, 1988 Trek 400T, 1985 Trek 450, 1997 Lemond Zurich, 1993 Diamond Back Apex, 1988 Schwinn Circuit, 1988 Schwinn Prologue, 1978 Trek TX700, Sannino
I've used nine and ten speed chains on a number of cranksets that originally had six speed axles behind them. I have not had the issue of the chain falling between the rings and they shift as good or better than they did with the original six speed chain. My front derailleurs are friction. If I were using STI "brifters" I would likely require a ramped & pinned set of chainrings along with the matching front derailleur for the system to work well because the STIs lack the infinite trimming that friction has. Try it and see what happens.
I've never cold set a frame. I just stick my 130mm axle between the 126mm dropouts, tighten the skewer and go ride my bike.