There was a video up on youtube when it happened a few months back. It shows Bill Dube giving a burnout demo of the killacycle and the front brake let go or he pushed the accellerator before the brake or something. He was talking and the poof the the bike was gone. The accelleration on that thing is unbelievable to see.
I met Bill in florida where he had brought an old battery pack from the killacycle for a little dragster with multiple motors and tiny wheels. It just didn't have enough traction to put the power on the ground those batteries put out amps like crazy.