A control assembly for an in-line bicycle shock absorber can include a control member rotatably mounted to a housing of the shock absorber, the control member having an interior bore, and with one end of the bore being closed and another end of the bore being open. The control assembly also includes a piston slidably mounted within the interior bore of the control member. The control member is rotated to adjust a first characteristic of the shock absorber and the piston is displaced within the interior bore to adjust a second characteristic of the shock absorber.