THE FRONT WHEEL STARTED TO WOBBLE AND VIBRATE EXCESSIVELY. THIS CAUSED THE MOTORCYCLE TO LOCK UP, GO STRAIGHT, AND END UP IN AN ACCIDENT AT 55 MPH. THIS WAS THE SECOND TIME IN 48 HOURS THAT THE SAME PROBLEM OCCURRED. TAKEN TO DEALER FOR CHECKUP, BUT THEIR RESULTS SHOWED THAT THE CAUSE WAS UNDETERMINED.*AK