Over the last ~50 years, I have found that electricians tape, not electrical tape, to be the best for bike and automotive wiring harnesses. Electricians tape is cloth impregnated with a tar like compound. It lasts and it is why wiring manufactures of harness use it for wiring harnesses. It does not get "gooey" like vinal tape does. I think it is also known as electrical friction tape. This is the stuff you find in house wiring of the 50's and on. 60 years later you can unwind it, although it may be stiff. Vinyl electrical tape is garbage.
-P.