Thinking of building a bike with either a Rohloff or Alfine geared hub and am unsure what cranksets I should be looking at. I have seen some good deals on a 36 / 22 Truvativ X9 double crankset, but am not not sure of the following
1. Will the chain line work if I was to remove the inner ring and just the larger outer, or should you ideally go for a single ringed crankset such as the Shimano Zee?
2. How do you deduce what sized front ring / rear sprocket you need. I know what I currently have on my 3 * 9 setup?
I suppose that given you don't have a rear mech if you spec it correctly you can get a perfectly straight chainline?