In general, my opinion on bikes with speakers is that they pollute the air. Most of it is becuz to the ear of a bystander, they're only able to hear a diminished sound at the outer range of the speakers. And this diminished sound is like an inconsiderate neighbor who plays loud music down the hallway. If you were 2 feet away from the speakers, the music might even sound good, that is, you'd be able to hear and maybe enjoy the full range of octaves or sumpthing like that, thusly it wouldn't be as much of a distraction. On top of that, it *seems* to me that the musical rider likes to draw attention to himself by means of a soundtrack like in the movies. Also, in the back of his mind, he thinks he's entertaining the public with his selection of music. Note: this mainly has to do with city riding.
2007 Honda Shadow 600