tatanab wrote:However, I agree, I have never seen the sense in indexing a front changer since the position may need to be adjusted according to which sprocket is in use.
I built a bike up. First time I've done that, and first derailleur bike I've ever had.
9 Speed triple, Sora brifters, Sora RD and FD. Spa crankset.
I rode that bike for 2 years, nearly always in the middle ring. Then I found out there was something called "trim" on my shifters.
So for all that time it had worked perfectly, with no chain rub. A while ago I managed to get through every single chainring/sprocket combination including big/big and small/small without any rub.
So either I'm some sort of bike idiot savant, or extremely lucky, but the warnings about indexed front shifting didn't seem to apply to me.
Then I changed the FD for a 105 triple. Because, well, "if it ain't broke keep fixing it till it is". Also the 105 is shiny. I can make it rub, but only if I really try, and even then only in very particular situations.
Indexed front shifting plus very occasional trim works just fine for me.