WHILE SLOWING DOWN FOR A TURN TO THE LEFT, THE FRONT TIRE LOCKED AND SLID, RELEASED AND LOCKED AGAIN THROWING ME TO THE GROUND IN TURN I WOUND UP WITH 4 BROKEN RIBS, A BROKEN RIGHT HAND , INJURY TO MY RIGHT LEG AND ROAD RASH. 5000 DOLLARS PLUS TO MY BIKE AND HOSPITAL EMERGENCY ROOM NOT TO MENTION A LONG RECOVERY. I WAS ON A PAVED CITY ROAD GOING LESS THAN 30 MPH. I DO NOT KNOW EXACTLY WHAT CAUSED THIS TO HAPPEN