The sub assemblies and components that make up this Starting Clutch include this Sprocket,start, the most expensive part.
The most reasonably priced component used on the Cm125c Custom 1999 (x) European Direct Sales / Kph Starting Clutch is the Bolt Flang 6x12.
Some items from this specific schematic: Sub-cord Neutral, Cap, Spring, Pin,knock, Sprocket,start.