1. While holding a constant line and speed, I suddenly felt a sharp jolt from the rear of the motorcycle followed by rapid bouncing. 2. The rear wheel locked instantly. I heard the tire skid and felt it stop rotating. 3. The ABS indicator illuminated, yet there was no braking input from me. 4. I attempted gentle steering correction, but with the rear wheel fully locked the motorcycle destabilized and threw me to the right. 5. I struck the pavement injured my left knee and right hand. The motorcycle slid and came to rest on the northeast sidewalk ramp at the corner of NE 102nd St / N Wallace Ave.