Worth it to wear ear plugs , I assume they must do some good . Wind noise , buffeting from a screen/fairing, helmet - there are so many things that affect riding comfort. I partly changed to the CB650F because it is a naked bike without a fairing and screen to hopefully eliminate one reason for buffeting/turbulence/wind noise. I now feel like I could do with a small flyscreen but even they can create turbulence ! Following other vehicles creates turbulence of course but the CB650F is usually pretty good in 'clean air '.There is no such thing as a "quiet" helmet! Wear ear plugs!!!