A sample from the products for the Rear Wheel include: Pin, Pivot, Washer, Wheel, Brake Shoe Kit (nas), Spring, Tension.
With two applications this Brake Shoe Kit (nas) is the most specified part.
This schematic depicts all components used in the Cw50 2003 5xx1 France 1b5xw-300e1 Rear Wheel partslist.