Originally Posted by Sir Lunch-a-lot
A somewhat different thought that has been bouncing through my head for a while: what if one were to drill a couple small holes in their frame and route wires that way? (could probably be routed from the stem to the fork for speedometer, through the rest of the frame for more sophisticated lighting systems, etc). Having watched some American Chopper (not quite bicycles, granted), I've noticed that this is how they route most of their cables: through the inside of the frame. Would there be structural problems with that sort of thing?
A couple thoughts on that:
If you find a rigid fork with mid-fork rack braze-ons that you are not using, it should be pretty easy. You would need to find something to feed up from the braze-on, then anchor the cable to it and use it like a fish tape to pull the cable through. At that point, the only holes drilled would be in the star nut and in the top cap for the stem. The good news is that neither of these serves any structural purpose as long as your stem is properly tightened.
God bless!
Wayne J.