Originally Posted by
vane171
Well, yeah, I get what you saying, I just thought this plastic rod would be less liable to cross, wrap around the first pulled wire. The bike brake/shift cable is twisty. Probably better still than this coiled fishing wire would be long and thin enough flexible plastic rod. I doubt that at the factory they start the job by inserting in the cable and they have to do it on thousands of bikes.
I imagine the factory start with something added to the bike frame during manufacture which is later used to draw the cable through.