A coupling device (1) is provided with a gearshift sleeve (2) for a gearshift transmission. The gearshift sleeve (2) via a first inner toothing (3) optionally couples a first or second coupling gear rim (4, 5) of a first or second toothed gear wheel (7, 8) to an outer toothing (9) of a hub body (10). The gearshift sleeve (2) comprises a second inner toothing (11), with which the gearshift sleeve (2) can be brought into engagement with the second coupling gear rim (5) of the second toothed gear wheel (8) and simultaneously via the first inner toothing (3) with the first coupling gear rim (4) of the first toothed gear wheel (7) subject to freewheeling of the hub body (10).