Originally Posted by
Drakonchik
I believe you're talking about this:
http://www.cycle-frames.com/bicycle-...-AL-FRAME.html
Though that is interesting and loosely relevant, I'd submit that it would require excessive modification and machining to put it mildly. That kit is really intended for aluminum frame-building.
The downtube adapter that I make (4 photos posted above) is an off-the-shelf solution that would allow immediate downtube shifter installation without modification of the frame. My design works with off-round tubing such as tear-drop, oval, and early 1980s "aero" frames as well.
As it happens, I've got a Le Tour Luxe frame under my roof, so I can check the exact fit and report back later today.
Yes, it's something very similar.
I'm not implying your offering isn't brilliant and potentially would resolve his mounting. Just that the OP insists on a solution to use the top boss. Which unfortunately requires effort and cost.
I like your mount! I remember bookmarking them for my own reference. Nice work.