THE FINAL DRIVE DIFFERENTIAL FAILED, LOCKED UP THE REAR TIRE, CAUSE CATASTROPHIC LOSS OF CONTROL, EJECTION FROM THE MOTORCYCLE AT HIGHWAY SPEED, AND TOTAL LOSS OF THE MACHINE. THE RIDER SUFFERED MODERATE INJURIES, MOSTLY ABRASIONS AND BRUISES, AND BROKEN BONES. THE TIRE PRESSURES AND FINAL DRIVE FLUID LEVEL HAD BEEN CHECKED THAT DAY, AND WERE CORRECT. A $10,000 MACHINE WAS TOTALED BECAUSE OF A CHEAP PART THAT IS A KNOWN DEFECT, HAS OCCURRED OVER AND OVER, AND BMW HAS NOT BEEN ORDERED TO FIX THIS SAFETY ISSUE! *TR