Rear sprocket assembly and lock device

A lock device for mounting a plurality of rear sprockets to a rear hub assembly for a human-powered vehicle, the lock device comprising:

• a first lock member including:
• a first axial end configured to be detachably attached to a sprocket support body of the rear hub assembly in a mounting state where the plurality of rear sprockets is mounted to the rear hub assembly;
• a second axial end opposite to the first axial end in an axial direction with respect to a rotational center axis of the plurality of rear sprockets;
• and
• a first surface radially outwardly facing in a radial direction with respect to the rotational center axis;
• a second lock member including:
• a third axial end configured to be attached to the second axial end of the first lock member in an assembled state where a smallest sprocket and the lock device are assembled as one unit;
• a fourth axial end opposite to the third axial end in the axial direction and having at least one radial projection;
• and
• a second surface radially outwardly facing in the radial direction, the second surface being adjacent to the at least one radial projection in the axial direction;
• the at least one radial projection of the second lock member extending radially outwardly from the second surface in the radial direction and being configured to abut against the smallest sprocket of the plurality of rear sprockets in the axial direction in the mounting state;
• and
• the lock device being configured so that the smallest sprocket is slidable relative to the lock device in the axial direction in the assembled state and before the mounting state.