ah, I see.
so if you mounted 2 spinning motors spinning vertically perpendicular to forward so one motor rotates clockwise and one counterclockwise, then the bike should theoretically want to stay upright and tracking straight.
Start turning right and the counterclockwise motor shuts down helping the bike make a sweet right turn, and the same for making the left turn, but opposite.
Man, now I'm off an a crazy tangent, I think I'll just leave it there.
Back to your regularly scheduled topic