WHILE RIDING THE MOTORCYCLE ON THE INTERSTATE THE MOTORCYCLE SUDDENLY SHUT DOWN AND LOCKED UP THE REAR WHEEL. I WENT DOWN ON MY LEFT SIDE AND HIT THE JERSEY BARRIERS DIVIDING HE HIGHWAY. ANOTHER RIDER JUST BEHIND ME SAW THE REAR WHEEL SUDDENLY LOCK UP TURN FOR A SECOND AND LOCK UP AGAIN. AS OF THE DATE OF THIS COMPLAINT IT HAS NOT YET BEEN DETERMINED WHAT THE CAUSE WAS. THIS IS CERTAINLY NOT COMMON FOR A MOTORCYCLE THREE YEARS OLD WITH SUCH LOW MILEAGE. I SUSPECT IT MAY BE A PROBLEM WITH THE ECU UNIT BUT THERE HAVE BEEN NO RECALLS ON MY MOTORCYCLE. THIS IS A POTENTIAL LIFE ENDANGERING ISSUE. IF NOT FOR MY HELMET I WOULDN'T BE HERE TO WRITE THIS. THIS MOTORCYCLE HAS ALWAYS BEEN MAINTAINED VERY WELL AND THERE ARE NO VISIBLE SIGNS ON THE OUTSIDE COMPONENTS THAT CAN ACCOUNT FOR THE ACCIDENT. NOTHING HAS EVER BEEN MODIFIED ON THE MOTORCYCLE NOT EVEN AN ACCESSORY ADDED. I HAVE HAD MANY CYCLES IN MY LIFE AND I HAVE BEEN RIDING FOR OVER 30 YEARS. *TR