Of all the components that make up this Rear Fork - Chain Case the Bolt,hex., 6x16 has the lowest price.
Parts such as the Rear Fork - Chain Case: Chain,drive, Arm,brake Stopper, Nipple,grease4.5, Joint,drive Chain are included in the Cb250k0 General Export Rear Fork - Chain Case parts fiche.
Of all the components used in this assembly the Swingarm *nh1* is the most expensive.