In this schematic the "Spoke B 9x158.5" is used most often.
Parts such as the Rear Wheel / Driven Sprocket: Hub,rear Wheel, Tube,rear.wheel, Tube, Tire (3.00-18), Tube,wheel are included in the Cb400f 1977 Usa Rear Wheel / Driven Sprocket parts fiche.
This Hub,rear Wheel is the most expensive of the items that make up this Rear Wheel / Driven Sprocket assembly.