The Moto Nostra CNC fuel cap is made of high strength aluminum.
The hard anodizing of the surface makes it extremely robust and fuel / oil resistant.
The Moto Nostra lettering completes the design.
Basically, such a tank cap is well hidden under the seat. Why should you install a noble part there, if you only see it yourself, and even that only when refueling or stowing the helmet?
The answer is as simple as attaching the cover itself:
Because you also like to reward yourself sometimes and you do not always have to show your treasures around everywhere...
Beautiful part with the joy also comes up when refueling!