In this schematic the "Disk,a Clutch Fri (nas)" is used most often.
The Bolt,flange 6x18 is the cheapest item from this partsfiche.
Parts such as the Clutch: Clip 10.6, B/brg Rad N/com, Nut,lock 40mm, Ring,clutch Spg S are included in the Gl1500c Valkyrie 2000 (y) Australia / Rbm Clutch parts fiche.