Fuel tank assembly, motorcycle accessory, and method of attachment

A fuel tank assembly for a motorcycle, the fuel tank assembly comprising:

• a fuel tank defining a fuel containment volume, the fuel tank having an upper wall;
• a fuel cap operable to selectively open and close the fuel containment volume;
• and
• a motorcycle accessory attachable to the fuel tank via a connection structure including first and second connection portions that are complementary and inter-engageable together to positively define a fully-secured state,
• wherein the first connection portion is secured to an exterior surface of the upper wall of the fuel tank, and the second connection portion is secured to the motorcycle accessory,
• wherein the connection structure defines a finite position and rotational orientation of the motorcycle accessory upon relative rotation of the motorcycle accessory with respect to the fuel tank to the fully-secured state, and
• wherein the motorcycle accessory includes a cover having an outer shape matching an outer shape of the fuel cap.