I haven't personally tried it but looking at my RS and pictures of ST's I'd say the ST side panels will not match the RS upper and belly pan. So if you want to turn your RS into an ST you'd need to have a complete fairing set with brackets. I've heard the steering head geometry is a little different too so I'm not sure if that would affect the fitment of the ST upper fairing.
You don't like the look of the RS?
