-
Lots of interesting info
And yet not one mention of hearing protection. Sensible European bikers have been using foam plugs since the early 90s at least. That simple and effective intervention obviously hasn't made it to the study population or the authors would surely have controlled for it.
As an aside, if you're bothered by noise, try plugs. I left mine in at the discotheque back in the days when I both rode and danced, it improved the experience of both 🙂
I think the study is about wind noise, not exhaust noise