A sample from the products for the Swing Arm (kx420-a1) include: Washer,6.5x20x1.6, Bolt,chain Adjuster, Nut,8mm, Bolt 6x20.
The lowest price component in this Swing Arm (kx420-a1) parts-list fiche is the Washer,6.5x20x1.6.
This schematic depicts all components used in the Kx420-a2 Kx420 1981 United Kingdom Usa Canada Export Swing Arm (kx420-a1) partslist.