The Bolt-upset-wsp-small is the most widely applied product in the KE100-B6 1987 USA STEP ( six times ).
A sample from the products for the Step include: Holder-step,lh, Pin-footrest Bar Fit, Holder-step,rh, Step-assy,fr,rh.
This schematic depicts all components used in the Ke100-b6 1987 Usa Step partslist.