The third important part besides tube and tire is the rim tape. Becauseit protects the inner tube against mechanical damage, for example fromspoke heads and metal in the rim and covers the holes in the spokeholes.
- High Pressure brand rim tape - various brands depending on stock: Schwalbe, Continental, Kenda, Semperit, Herrmans - 12 inch bike wheels - ETRTO 20-203 - perfect fitting - image shows sample