Originally Posted by
Desert Fox v2
I am also reading about them and they are meant for 3x7. Since I do not have a third ring in the front would that just become a click on the shifter?
No. They were compatible for both a double and a triple crank up front. You just need to adjust the setting (pretty similar to adjusting a SIS downtube shifter from friction to index shifting as far as I can remember). As a matter of fact they were standard equipment in several Lemond bikes (maybe even others, but that's all I know) with a double crank up front...