Parts such as the 28 Rear Wheel: Sprocket Driven, Emblem Wheel, Balancer, Wheel, Balancer, Wheel are included in the Mt125-a 2016 Br32 Europe 1rbr3-300ea 28 Rear Wheel parts fiche.
The 28 Rear Wheel assembly is constructed from several parts from which the Cast Wheel Rear is the most expensive.
In this schematic the "Nut, Self-locking" is used most often.