A wheel suspension arrangement including a suspension spring, at least one control member arranged to control a stiffness of said suspension spring. The control member is displaceable relative to said suspension spring between a retracted position, in which the control member does not interfere with an operation of the suspension spring, and an advanced position, in which it interferes with the operation of the suspension spring in a way that the stiffness of said suspension spring is increased. The wheel suspension arrangement further includes a biasing means configured to bias said control member towards said retracted position.