OK, I dumped speed from 90 to 50, changed into the turning lane, straightened up and applied some front brake. Wheel locked so I released and re-applied gently feeling for the brake. Next thing I know I'm watching the bike slide along on its left side in front of me. Safety gear worked well. The bike is a 2009 Honda 750 shadow, the road was wet and surface irregularity was not a problem. Now, WTF happened and what can I do to avoid a repeat when the bike is fixed? DM