The Cb550f1 Super Sport 550 Four 1976 Australia Tail Light (a,cm,dk,dm,u) consists of twenty pieces with the Light Unit,tail being the most expensive.
The component with the lowest price in the TAIL LIGHT (A,CM,DK,DM,U) schematic is the Bolt,hex 5x25.
With four applications this Rubber, Cushion is the most specified part.