The component with the lowest price in the FRAME BODY schematic is the Nut,hex 8mm.
Parts such as the Frame Body: Body Comp.*nh138*, Guard Comp,rear M, Bolt,hex.,8x115, Bolt,flange 6mm are included in the Z50jm Monkey Baja Japan Frame Body parts fiche.
The Frame Body assembly is constructed from several parts from which the Body Comp.*nh138* is the most expensive.