My front tire is actually coming up on needing to be replaced. It’s still within minimum specs but gonna be getting the Michelin road 5 or 6 put on. The rear is a road 5 with about 500 miles on it.My guess is that there is something that needs attention if your mirrors vibrate badly. Like others have said, my mirrors are perfectly clear and vibration free. I'm wondering if your tires (or front tire in particular) is worn, or the head stock bearings need tensioning.