Hello,

I'm fixing up a road bike I have. It has a short section of Cable housing for the rear derailleur that loops up and around and the into the rear derailleur. All together it's maybe 5-6 inches. About halfway through the housing is sliced open sort of diagonally allowing you to see the bare cable inside.

The derailleur functions correctly and the cable appears to be keeping it's tension. I don't really want to buy another length of housing for such a small section. Do you think this is a hazard as it is? Would you wrap it with electrical tape or similar to keep the debris out but consider it fine otherwise?

Or should I replace the housing in fear that the cut may become larger making the cable loose tension and potentially throwing the derailleur into the wheel?

Thanks!