Abstract: A motorcycle is shown comprising a frame comprised of plural cast components coupled together. The frame is comprised of an upper one-piece frame portion having an integrated air tank and an integrated fuel tank therein. The integrated air tank is defined by a forward portion of the upper main frame portion, and a forward open face of the integrated air tank defines an air intake. The fuel tank is defined by a wall separating the upper one-piece frame portion into the two sections. Upper and lower steering post sockets are also integrated into the frame, rearward of the air intake and a steering post extends through the air intake portion of the frame.