If you don't need the venting nozzle on your small ACERBIS fuel cap you can cover it with this vent cap cover.
I wanted the top of the fuel cap flat because my luggage system (mosko moto 40L reckless) lays on top of it.
Before the cover fits you have to cut the venting nozzle down.
I printed it in Prusament PETG Matte Black 1kg 0.4mm nozzle, 0,2mm structural with a brim.
PETG should be resistant to fuel fumes.
The author marked this model as their own original creation.