Gentlemen-- This is a lot of info. I'm a big fan of suntour drivetrains, but I've never had the courage to crack a freewheel open. I suppose I don't have anything technical to add to the discussion here, but I thought I'd mention that I just finished refreshing an '83 Trek 614 for my wife, and it has the suntour "mighty 6" (14-16-19-23-27-30) freewheel. I live in the mountains of western NC, and I have to say, I think this is a fabulous setup (combined with the "Mighty Tour" 28-45-50 crankset). My wife said she felt like she could ride it up a tree if need be, and the shifting --with the addition of a new SRAM chain-- has been flawless so far. Does the "mighty 6" freewheel use one of the bodies that you guys are discussing here?