The present invention provides a motorcycle including a frame having a forward portion and a rearward portion. The forward portion includes a steering head. The motorcycle also includes an engine coupled to the frame and a steering assembly pivotably coupled to the steering head. The steering assembly includes a fork and a front wheel rotatably coupled to the fork. The motorcycle further includes a swing arm pivotably coupled to the rearward portion, a rear wheel rotatably coupled to the swing arm, and a first cavity defined in the frame. The first cavity is in fluid communication with the engine to provide fuel to the engine. The motorcycle also includes a second cavity defined in the frame. The second cavity is in fluid communication with the engine to provide combustion air to the engine.