A sample from the products for the Rear Fender include: Screw,tapping,5x16, Fender Set, Rr. (wl), Bolt,flange 6mm, Mud Guard.
Of all the components used in this assembly the Fender Set, Rr. (wl) is the most expensive.
The component with the lowest price in the REAR FENDER schematic is the Screw,tapping,5x16.