rear derailler
Howdy, I have an old bike with a SIS derailler with the hanger attached. I want to upgrade beyond a shimano tourney. I was told that I cannot put another derailler on the bike unless it has the hanger attached...like the tourney. It doesn't make sense to me that I couldn't put a hanger on the bike and attach any derailler that I want. Any thoughts if this makes sense