The O-ring,2.5x1.5 is the lowest priced item on this L. Front Brake Caliper(cb 600fa/fa3) schematic.
The L. Front Brake Caliper(cb 600fa/fa3) assembly is constructed from several parts from which the Caliper Sub Assy, is the most expensive.
Parts such as the L. Front Brake Caliper(cb 600fa/fa3): Cap,bleeder, Piston,22 B, Pin,hanger, Bolt,flg.dr 8x32 are included in the Cb600fa Hornet 2010 (a) England / Abs Mkh L. Front Brake Caliper(cb 600fa/fa3) parts fiche.