I for one can't imagine riding without tunes playing in the background. I even carry a backup iPod just in case the Zumo/XM craps out. For me it actually has the opposite effect, it helps me concentrate. I don't have the music blasting at max volume, just enough to hear something, for without music I start hearing voices in my head, now that's really distracting :dribble: Oh and hearing something like Aferburner by ZZ Top, that's a guaranteed 20mph+ increase in speed
I started with ER6i earbuds, but find that anything more than a couple of 1000+ mile days the buds get uncomfortable, and it's extra PITA putting them in and out every time and making sure the wries are run correctly so as not to pull on the buds or get in the way. So my preferred solution now is helmet speakers with disposable foam ear plugs. Sure the sounds quality is not as good, but like i said i run the tunes just loud enough to hear the music instead of voices in my head so perfectly fine...