Originally Posted by
econprofessor
I'm also in the process of installing a dynamo and lights. I'd like to protect the wires on the lights from wear and dirt and put them in some kind of housing. Does anyone have a recommendation for this? Can I just use brake or derailleur cable housing?
For the ultimate in durability, you can get coaxial cable for dyno lights that is VERY tough. But even if you don't go that route, just use some common-sense like:
1) Run the wiring on the inside edge of fork legs to protect them from bumps.
2) Minimize the amount of spiraling that you do - each spiral is just another opportunity for a wire to get damaged.
3) Make sure that you allow enough slack in the wire so that it will not be pulled or broken regardless of how much you turn your handlebars.
4) If you're running wiring inside a metal fender, you can embed it in the rolled-over edge of the fender, or use aluminum tape to hold it in place.
5) Cover exposed wiring with helicopter tape.