Another anti-wheelie possibility is suggested by the common Supercross move of tapping the brake in mid-air to rotate the whole bike forward, as a means of correcting its landing attitude. To raise the nose, the rider gives a whiff of throttle. On a roadrace bike, this could take the form of a flywheel, rotating in the same direction as the wheels and in their plane, accelerated to high speed either by braking or by an electric motor. When anti-wheelie torque was required, you would brake the flywheel. The obvious drawback is the weight of the flywheel and associated hardware. Compromise again. When we want more and more from a basically simple system (two wheels, an engine, and a place to sit), the virtue of its simplicity is lost.