So I thought I was buying this drum hub (Sturmey Archer X-FD) and it turns out I only bought the hub shell. Now I still need the hub and I don't know what to do with the shell.
Can anyone tell me why they sell hub shells separately? I'm not sure if I should:
A) Buy the complete hub and keep the shell as a spare.
B) Buy the complete hub and return the shell.
C) Buy the internals and install them in the shell.