The lowest price component in this Rear Wheel parts-list fiche is the Nut,hex.,8mm.
A sample from the products for the Rear Wheel include: Nut,u,8mm, Bolt,disk 6x19, Collar L,rr Axle, Sprocket,final Dr.
thirty-three components are listed in the schematic for this Cr125r 2007 (7) European Direct Sales Rear Wheel .