2001 HONDA GL1800 GOLDWING MOTORCYCLE. WHILE IN TRAFFIC, APPLIED FRONT BRAKE SEVERAL TIMES AGGRESSIVELY. SPEEDS WERE 20-30 MPH. UN-KNOWING THAT THE LEFT FRONT FORK SHOCK SEAL FAILED, AFTER THE BRAKING IN TRAFFIC, & OIL WAS PUSHED OUT OF THE FORK SHOCK. THE OIL COVERED THE FRONT TIRE & BRAKE. PULLING INTO THE GARAGE, WHEN I APPLIED THE BRAKE THE FRONT TIRE LOST TRACTION, DUE TO THE OIL ON THE TIRE, & THE MOTORCYCLE SLIPPED & LANDED ON IT'S SIDE. THE REPAIR SHOP REPLACED ONLY THE LEFT FRONT FORK SHOCK SEAL. THEY SHOWED ME THE OLD SEAL & THERE WAS NO DAMAGE. I BELIEVE THAT THE MOTORCYCLES FRONT SUSPENSION ANTI-DIVE SYSTEM IS FAILING IN THE SHOCK "LOCKUP" POSITION & THE SHOCK SEAL IS BEING OVER PRESSURED DURING THE SHOCK MOVEMENT ACTION. ARGUED WITH THE SERVICE SUPERVISOR & THE HONDA MOTORCYCLE DIVISION 866-784-1870 FROM 10 AM TILL 2 PM, & THEY ARE SAYING THAT THERE IS NO PROBLEM WITH THE MOTORCYCLE & THIS IS A ISOLATED INCIDENT. *NM