In this schematic the "Spoke A, Rear" is used most often.
Of all the components that make up this F-16 Rear Wheel the Nut,hex 10mm has the lowest price.
Parts such as the F-16 Rear Wheel: Bearing 6305z, Tire350s184ps21r2, Balancer,heel(20g, Retainer, Bearing are included in the Cb450k4 U.s.a F-16 Rear Wheel parts fiche.