Originally Posted by
sdold
Removing things like derailleur hangars seems unnecessary. You're not saving much weight, and it's ten times more of a pain in the ass if you ever decide to put a derailleur back on. What's the point?
aesthetics, in my case. My conversion utilizes an IGH and I have no intention to put a derailleur on it, so the hanger is unnecessary and aesthetically disruptive. Same for the left shifter boss and FD hanger - both are now absent from my frame. I retained the right shifter boss for the IGH shifter. Of course, my conversion is pretty high end, not a quick n dirty project, so I probably would not go to the same extent if I was doing a cheapie conversion.
It looks CLEAN.
If I suspected a later conversion back to a standard drivetrain, I'd have retianed those things.
For others, the reasons may vary.
Before and after frame pics for reference - much better to my eyes:
