Realigning seat and chain stays
I have a ten year old (steel) Gemini Randoneur with a 7 speed rear cluster, which I want to replace with a nine speed. The problem is that the axle is too narrow. I do not think that I can get a less dished rear wheel to provide extra room, so I am contemplating getting a bike builder to realign the seat and chain stays so as to provide more room for the wheel and cluster. Has anyone done this before and/or is it possible, and is there any risk with such a procedure?