Originally Posted by
RubeRad
I'd be afraid of cross-threading. I ruined a nice crank once by letting a friend's kid 'help' me with some pedals, I didn't realize he had cross-threaded my pedal and jammed it in there until the pedal fell out when I was riding. Fortunately a local shop was able to save the crank with helicoil.
Some day I'm going to get an old crank arm and try this. I want to see how hard you have to wrench on it.
It is incomprehensible to me that you can do this and not realize you're forking it up.