Originally Posted by
Retro Grouch
Every time that I starting thinking about IGH I ask myself what I have to gain and I don't have an answer.
^^^This right here says it for me.
I've toyed with the idea of setting up an IGH, mainly for the novelty factor, and to have something different. The drop in efficiency compared to a derailer system, along with no benefits that matter to me has kept me away. It is fun to look at the IGH bikes of others though!