They have definitely quietened things Down for the main part. I do in some instances get more of a choppy turbulence sound which I didn’t get before but it’s only occasionally when the wind or pressure is at certain levels. Would recommend, they’ve definitely reduced the noise at road speeds I’ll report back when I’ve done some long motorways runs.
Sorry to reawaken an old thread. These worked very well for me, turbulence reduced and that thrumming sound gone. I was so impressed I bought the next generation with winglets. If anyone would like these 3D printed iconic spacers with all the fittings, message me. £15 + pp. Got an original screen too if anyone fancies going to standard or to have something to cut down?
Not quantifiable. In the picture the bike is wearing the touring screen. With that on and the spacers that was the fix for me. Don't need to raise the screen either on lowest setting you just forgot there was ever a problem
