Parts such as the Camshaft - Valve: Inner,valve Spg., Seal,valve Stem, Shaft Cam, Bolt,hex 6x10 are included in the Cb125k5 General Export / Mph Camshaft - Valve parts fiche.
The most reasonably priced component used on the Cb125k5 General Export / Mph Camshaft - Valve is the Bolt,hex 5x12.
The sub assemblies and components that make up this Camshaft - Valve include this Shaft Cam, the most expensive part.