[Klay]

In conclusion, a rider must lean a bike into a turn.
Counter-steering and hip thrusts are two common ways of
creating the lean, but other ways exist. The rider can take
advantage of an uneven road surface, push harder on one
pedal than the other, lean the bike over by the handlebars,
accelerate with the wheel turned, or employ the growing oscillations
shown in Fig. 5. In any event, gyroscopic forces
play little role in leaning the bike over, through they do help
set the steering angle. The appealing notion that gyroscopic
forces are central to bike behavior, often repeated in
papers3,13 and textbooks,14 is incorrect.

http://socrates.berkeley.edu/~fajans...eerBikeAJP.PDF