Taking this far too seriously I know, but as it looks as though the rider has just crested a small jump, so he has chopped the throttle, but is about to blip it to bring the back wheel down. First off the revs are going to shoot up (unless there is part of the shaft left, and it has jammed), then he is going to have one hell of a harsh landing, followed by a faceplant over the bars into the ground. I suspect that a model flatbed truck is not going to be much use to him. A model medivac helicopter could be more fitting.
Mark