In order to protect the tube from the spoke heads of the rim, you should check the rim tape for damage every time you mount the tire and replace it if necessary.
The rim tapes are not only available in different inch sizes, starting from 12 to 21 inches, but also in certain dimensions in different widths. 15 inches are available in 38 or 46 mm or a 16 inch even in 4 widths 23, 28, 30, 60 mm so that they fit exactly into the rim well and do not slip. For motorcycle tires, these are made almost entirely of rubber.
With tubeless motorcycle tires (TL) where the spokes are sealed, you don't need a tube or a rim tape.
If you are on the go you can help yourself with a few layers of tape or you can cut one out of the old hose. Some Supermoto drivers who want to drive spoke rims with tubeless tires seal the rims with silicone on the screw heads.
You can order all rim tapes cheaply in our shop.
And a short video on how to use electrical tape: