A gear assembly for a bicycle, in particular for a hub gear, comprising: - a hollow gear main axle which can be non-rotatably fixed relative to a bicycle frame (1, 2), - a driver rotatably mounted on the gear main axle, - at least one planetary gear including at least one gear component (27, 29) in the form of a planet carrier or a sun gear rotatably mounted on the gear main axle, - a clutch (30, 31) including a clutch member (30a, 31a) axially displaceable relative to the gear main axle between an engaged shifting state and a disengaged shifting state, wherein the gear component is non-rotatably connected to the gear main axle in the engaged shifting state of the clutch and rotatably connected relative to the gear main axle in the disengaged shifting state of the clutch, - an actuating element housed in the gear main axle and rotatable relative to the gear main axle, - at least one link motion connecting the actuating element to the axially displaceable clutch member and being configured to convert a rotary movement of the actuating element into an axial displacement of the axially displaceable clutch member, wherein the link motion includes at least two selector fingers to be moved by a link motion guide of the link motion being spaced in the direction of rotation of the actuating element and which extend from the axially movable clutch member through an opening of the gear main axle into the link motion guide, wherein the actuating element includes a guiding groove into which at least one guiding finger fastened to the gear main axle projects, and wherein the actuating element is fixed in the axial direction relative to the gear main axle by the guiding finger and the guiding groove. - a hollow gear main axle which can be non-rotatably fixed relative to a bicycle frame (1, 2), - a driver rotatably mounted on the gear main axle, - at least one planetary gear including at least one gear component (27, 29) in the form of a planet carrier or a sun gear rotatably mounted on the gear main axle, - a clutch (30, 31) including a clutch member (30a, 31a) axially displaceable relative to the gear main axle between an engaged shifting state and a disengaged shifting state, wherein the gear component is non-rotatably connected to the gear main axle in the engaged shifting state of the clutch and rotatably connected relative to the gear main axle in the disengaged shifting state of the clutch, - an actuating element housed in the gear main axle and rotatable relative to the gear main axle, - at least one link motion connecting the actuating element to the axially displaceable clutch member and being configured to convert a rotary movement of the actuating element into an axial displacement of the axially displaceable clutch member, wherein the link motion includes at least two selector fingers to be moved by a link motion guide of the link motion being spaced in the direction of rotation of the actuating element and which extend from the axially movable clutch member through an opening of the gear main axle into the link motion guide, wherein the actuating element includes a guiding groove into which at least one guiding finger fastened to the gear main axle projects, and wherein the actuating element is fixed in the axial direction relative to the gear main axle by the guiding finger and the guiding groove.