I had one on a different bike and it does work if all you need is to stop helmet buffeting, it does cause the air to sweep up higher over the windshield ( your passenger may not care for the effect ) just don't expect side or lower wind turbulence to be effected.
If your like me and you also want protection from bugs and more hand coverage then look into a Givi windshield which being higher should take care of helmet buffeting plus offer more. for a around $ 50.00.
I just ordered the Givi so I really can't say how well they work yet.
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