> Which should also now be giving you a clue about how a bicycle
> or motorcycle wheel could not be helping stability. For as you fall
> over, the slight gyroscopic effect shoves you forward or backwards,
> not back upright.

The way I have heard it explained, when the bike starts to lean, the gyroscopic force tends to turn the wheel in the direction of the lean. This causes the bike to follow a curved path, with a resulting centrifugal moment that tends to oppose the initial lean. So, the gyroscopic effect is not to right the bike itself, but to influence the steering so as to provide a righting moment. This then explains why counter steering works. Someone once told me that figuring out counter steering is why learning to ride is so difficult in the first place.

David