MY DUECE WAS OWNED & BUILT BY A HD DEALER (HIS PERSONAL BIKE ) & RODE BY HIM FOR 15 YRS. A 2000 MODEL W/42K MI. IT HAS DEVELOPED A WHOLE BIKE VIBRATION (FOR LACK OF A BETTER TERM) IT RIDES LIKE A REAR TIRE W/ AN EGG IN IT! PUT BRAND NEW & BALANCED (TWICE ) MICHELINS ,FR.& REAR, LOOKED AT MOST OBVIOUS FRONT TO REAR TORQUED BOLTS F-R , NEED MORE IDEAS TO FIND THIS VIBE, FROM 35 MPH -80 MPH ANY MORE IDEAS OUT THERE??