Glad you liked the visuals, Ken.  As far as the music goes, I tried to keep it pretty chilled out so as not to distract from the riding.  I didn't remove the sounds from the shots unless they were in slow motion (which was a fair bit of the video).  In my experience, if the sound is not adding to the video, it is taking away from it.  I kept the sounds of the bikes in there as much as possible.   
I'd love to make an edit with no music at some point, but the shots I had just weren't right for it.