This Whell Comp.rr is the most expensive of the items that make up this F-12 Rear Wheel assembly.
The lowest price component in this F-12 Rear Wheel parts-list fiche is the Nut,hex 6mm.
Some items from this specific schematic: Bolt,stud,10x48, Washer,spring,6mm, Tube,wheel, Tube275/300-18tr6.