R.BKE Motorcycle Gas Cap

R.BKE fuel tank cap for motorcycles, bayonet coupling passage diameter 40 mm, in stainless steel, steel and aluminium alloy material. This cap is supplied equipped with VITON® sealing gasket, suitable for contact with gasoline.

The variant without key is available in steel or black colour and it can be supplied hermetic or ventilated, as well as ventilated through unidirectional valves, that allow both the expulsion of vapors generated by fuel and the air inlet into the tank; moreover, in case of tank overturning, the loss of fuel is limited by the valves of controlled ventilation system, as required by the EC legislation.

The variant with key is available hermetic or ventilated, in steel or black colour.

The R.BKE fuel tank cap for motorbikes is chosen by the best customization laboratories for restoring some of the most famous and prestigious historical motorcycles, like Aermacchi Harley Davidson and different models of Cagiva; it is also used for the personalization of  many other motorcycles, like Moto Ducati 750 Imola, Moto Guzzi 850 T5, Triumph Bonneville T100, Kawasaki W650 Cafe Racer and so on:

Aermacchi Harley Davidson Moto Triumph custom
Kawasaki W650 Cafe Racer Moto Guzzi Police
Ducati 750 Imola custom Cagiva
Moto Guzzi 850 T5 custom Velocifero scooter
Triumph Bonneville T100 custom Moto Guzzi 850 T5

This product is suitable for T40.BKE Fillers.

The R.BKE fuel tank cap for motorcycles is manufactured with the utmost attention to details, using cutting-edge construction techniques and high quality materials, so to guarantee reliability and durability over times.

Additional information


Bayonet Coupling – Inner

Passage Diameter

Ø 40 mm


Aluminium alloy, Stainless steel, Steel

Compatible Products

T40.BKE Filler

Compatible Motorcycle

Cagiva, Ducati, Harley Davidson, Kawasaki, Moto Custom, Moto Guzzi, Triumph

Compatible Products

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