  Continuing from the author's previous article 'Random walks and contracting
elements I', we study random walks on (possibly asymmetric) metric spaces using
the bounded geodesic image property (BGIP) of certain isometries. As an
application, we show that a generic outer automorphism of the free group of
rank at least 3 has different forward and backward expansion factors. This
answers a question of Handel and Mosher.
