Givi has a range of universal screens for naked bikes, mounted via the headlight bracket.
GS A210 - Universal screen, smoked, 36.5 x 35cm (includes universal fitting kit or can be combined with bike-specific fitting kit - see listings below)
GS A201 - Universal screen, smoked, 29.5 x 31cm (includes universal fitting kit or can be combined with bike-specific fitting kit - see listings below)
GS 240A - Universal screen for naked bikes, smoked, 33 x 36.5cm (requires A240A universal fitting kit)