Some items from this specific schematic: Circlip,42mm, Bearing-needle,bm2824, Sleeve,swing Arm,l=21, Sleeve,rear Axle,rh,a.
The component with the lowest price in the SWINGARM schematic is the Washer-plain-small,10.
The sub assemblies and components that make up this Swingarm include this Arm-comp-swing, the most expensive part.