Originally Posted by
Andrew R Stewart
Usually the cage bottom edge is roughly a couple/4mm above the large ring around the cage connection to it's links/der body. In your photo that point is much farther above the ring's teeth. Was this the case before any potential bending might have taken place?
The front derailleur was initially clamped on much lower. Because the derailleur got bent in the middle of a ride where I needed access to both chainrings, I clamped the front derailleur much higher, as shown in my first post's photos.
Attached are some photos of the front derailleur in a lower position, around where it was at the time of the bending. First, a depiction of what the front derailleur's position was before getting bent. In this photo, the clamp has been totally loosened, and I'm just holding the cage what seems to be a proper position. Based on this photo, I don't think the cage's arch has been affected much since it still matches the chainring profile pretty well.
And second, here is the front derailleur at the same height, but with the clamp totally tightened on the seat tube. Tightening the clamp forces the cage to rotate to this skewed position where the rear of the cage is catching in the chainring's teeth while the front of the cage has too much clearance.