Originally Posted by
non-fixie
I don't have much of a shift pattern, to be honest, on the bikes I have set up this way. I use the FD very much like the high/low gearing on my Jeep.
High/low is a shift pattern.
The issue isn't that it's complicated, it's that the shift when you want to change ranges is pretty big and disruptive. Super-wide doubles usually need to be shifted gently, and you need to dump loads of gears in back to compensate for the ratio change.