The component with the lowest price in the STEERING STEM schematic is the Bolt,sh Dr 8x42.
Parts such as the Steering Stem: Bolt,sh Dr 8x42, Thread Comp,top, Dust Seal,strg.hd, B/brg N/rad N/com are included in the Cb1000r 2009 (9) European Direct Sales Steering Stem parts fiche.
The sub assemblies and components that make up this Steering Stem include this Stem Sub Assy,str, the most expensive part.