Just bougt this Road Glide a few months back. I have had it back to Harley several times for an "extra" vibration I feel entering corners. They have found bad sprocket bearing, replaced handlebar bushings but have not found the source of this "rogue" vibration. The new bearing on the sprocket took away the shake above 65 but not the vibration. Is this something I should be worrying about. I was thinking front wheel, fork issues but I really don't know. Any advice?