Originally Posted by
repechage
One interesting note is that the rear mech. Changed in some key dimensions before Super Record.
So when someone complains they cannot or can get it to handle a 28 cog they are both correct.
That's very interesting, Rep. Other than a few cosmetic changes they made through the years, ie; the shape of the back plate, the location of the return spring pivot, etc., I didn't realize they had made changes in dimensions of the basic design. I think the newest example I have here is a Pat. 81, and the oldest a Pat. 72. I'll have to look more closely at them. I seem to be able to use a 14-28 on the Pat. 74 on my Le Champion, with a bit of finessing.