Back to gyroscopic wheel force, that is why gran prix motorcycle riders throw their knees out to steer. The wheels spinning that fast want to remain plumb and the rider must create drag and counterbalance to navigate through the turns.
Also, way back to a question i asked earlier this post, could a rider change his riding position during a run to act like a dynamic ballast? I used to drag race my old Maxim X, a naturally aspirated 700cc bike that ran very well. In one race, because of the low number of bikes that showed up at the track that weekend, i went up against a N2O breathing 1300CC 'Busa. I had an excellent light, my opponent did not. Being so overmatched, i was a little too hard on the throttle out of the hole and had my bike travelling up on it's rear wheel until i found 4th gear. Because my opponent had a poor light and wasn't ahead of me, i thought i might have a shot and rather than ease out of the throttle, i stood up on the footpegs and leaned out over the front fender desperate to keep the lead. Would it be possible to do something similar if the rear wheel was to have trouble hooking up or the bike started to develop a high speed wobble?
-Chad-