In my R3R I hear the front gear box bearing rumbling when it's cold and the clutch is out, if I pull the clutch in the rumble stops.
In 4th and 5th at 2200RPM I experience a vibration through the bike that completely disappears when I put the
slightest of pressure on the clutch leaver.
After 15000km the vibration has not changed for better or worse,love not to have it but I live with it, there some posts on this site about the same subject if you are interested.