I have stripped my motor and found it has a 900cc big bore kit in it. I am trying to establish the manufacturer of the kit so I can order new rings. On the underside of the piston is the word \"handst\" and \"900CC\" stamped on the side wall also a logo with the leters\"SK\" set in a diamond logo is stamped on the opposite side to the handst. Does anyone have any ideas as to who makes this Kit?......Keith
