Aprilia Shiver 750 (10-13) GIVI's extensive product range does not include various rear box mounting plates and brackets. If a specific engine type has a luggage rack from the factory, in that case only a specific plate with article number E needs to be attached to use GIVI boxes. Otherwise, metal cantilever box holders with SR front, or box holder arms marked F, FZ or FL and the recommended plates are the solution.