2007 KAWASAKI ZX1400A7F Structurebody Problems

I PURCHASED A NEW 2007 KAWASAKI ZX-14 MOTORCYCLE IN MAY OF THIS YEAR, 2007. I HAVE MAINTAINED THE MOTORCYCLE IN ACCORDANCE TO THE MANUFACTURE'S GUIDELINES. DURING NORMAL OPERATION OF THE MOTORCYCLE, ON SMOOTH FLAT PAVEMENT, AT NO MORE THAN 50 MPH, THE REAR END DROPPED ABOUT THREE INCHES WITHOUT WARNING. AT FIRST I THOUGHT THE REAR TIRE HAD GONE FLAT. AFTER I SAFELY BROUGHT THE BIKE TO A STOP, I LOOKED DOWN AT THE REAR TIRE, IT WAS NOT FLAT. UPON FURTHER INSPECTION I REALIZED THAT THE FRAME OF THE BIKE HAD FAILED. THE FRAME WAS INDEED BROKEN. THE BIKE HAS NEVER CRASHED INTO ANYTHING OR HIT ANY POTHOLES. THERE ISN'T A SCRATCH ON THE BIKE AND IT HAS NEVER HAD ANY STUNTS PERFORMED ON IT. THE BIKE IS AT AN AUTHORIZED KAWASAKI DEALER NOW AND THEY HAVE FOUND NO SIGNS OF ANY ABUSE. THE SERVICE DEPARTMENT TECHNICIANS HAVE CONCURRED...