I'm currently rebuilding an HIF6 and the damper assembly seems to have an extra piece that I don't see in the picture of the damper on the SU website (below). It's a little black coloured stamped steel cup shaped thing with a couple of tabs sticking sideways from its top, situated loosely between the plastic cap and the brass damper body. It's about the same diameter (less the tabs) as the brass damper body. Anyone have any idea what it's for? It seems to obstruct the piston movement occasionally which can't be a good thing.












