Originally Posted by
cxwrench
You either remember where your chain is or...wait for it...you look.
You beat me to it. That looking bit. (I'm glad I still can. I have to use a mirror because I cannot look back over either shoulder - too many collarbone and shoulder injuries - but looking down still works. I do cheat. I only have to look as far as my DT shifters! (Fun concept - DT shifters = cheating.)