The component with the lowest price in the REAR SWINGING ARM schematic is the Pin 20x20.
Parts such as the Rear Swinging Arm: Swing Arm Assembly,rear, Pin 20x20, Cap,rear Swing Arm Pivot, Washer are included in the Gr650 1984 (e) (e01 E04 E15 E16 E17 E21 E22 E24 E26 E34 E39) Rear Swinging Arm parts fiche.
The sub assemblies and components that make up this Rear Swinging Arm include this Swing Arm Assembly,rear, the most expensive part.