quoted from the above article:
Having pointed to the gyroscopic nature of the bicycle wheel, it should be pointed out that experiments indicate that the gyroscopic stability arising from the wheels is not a significant part of the stability of a bicycle. The moments of inertia and the speeds are not large enough.
Seems I should have done some searching instead of stateing results of my own experimenting!
since reading that I've found plenty oif sites that state the gyroscope theory has been refuted.
ken.