The Rear Wheel is made up of components including this Panel, Rear Wheel which is the most expensive.
Parts such as the Rear Wheel: Shoe,brake, Spacer(15.3x21.7x63), Spacer(15x28x19), No Product Description Available are included in the Gp125 1981 (x) (e02 E04 E17 E18 E21 E22 E41) Rear Wheel parts fiche.