Parts such as the 033 Wheels: Nut, Rear Sprocket T42, Rear Sprocket Flange, Absorber, Hub Shock are included in the Ss620sport 2003 Usa (supersport 620s) 9151-1621a 033 Wheels parts fiche.
The Nut, Flanged M10 is the cheapest item from this partsfiche.
The sub assemblies and components that make up this 033 Wheels include this Rear Wheel, the most expensive part.