The Pin,split,2.5 is the lowest priced item on this Rear Wheel schematic.
Parts such as the Rear Wheel: Axle Comp,rr, Washer Conical Sp, Bolt,sprocket, Washer,rr.caliper are included in the Vfr750r Rc30 1988 (j) Belgium Rear Wheel parts fiche.
Check out any of the thirty-seven Rear Wheel components enlisted.