A clutch unit, comprising: a lever-side clutch part, which is provided on an input side, and is configured to control transmission and interruption of a rotational torque to be input through a lever operation; and a brake-side clutch part, which is provided on an output side, and is configured to transmit the rotational torque from the lever-side clutch part to the output side, and interrupt a rotational torque to be reversely input from the output side, wherein the brake-side clutch part comprises: a stationary member (23, 24, 25), which is constrained in rotation; an output member configured to output the rotation; and an engaging element configured to control the interruption of the rotational torque to be reversely input from the output member and the transmission of the rotational torque to be input from the lever-side clutch part through engagement and disengagement between the stationary member (23, 24, 25) and the output member, characterized by the output member comprising a gear member mounted thereto, which meshes with the stationary member (23, 24, 25) during interruption of the rotational torque and is released from the meshing state with the stationary member (23, 24, 25) during transmission of the rotational torque, and a cam mechanism configured to perform control so as to immediately after the gear member is disengaged from the stationary member (23, 24, 25), there is given a state in which the engaging element is engaged between the stationary member (23, 24, 25) and the output member, after that, when the gear member is completely disengaged from the stationary member (23, 24, 25), the engaging element is disengaged between the stationary member (23, 24, 25) and the output member. a lever-side clutch part, which is provided on an input side, and is configured to control transmission and interruption of a rotational torque to be input through a lever operation; and a brake-side clutch part, which is provided on an output side, and is configured to transmit the rotational torque from the lever-side clutch part to the output side, and interrupt a rotational torque to be reversely input from the output side, wherein the brake-side clutch part comprises: a stationary member (23, 24, 25), which is constrained in rotation; an output member configured to output the rotation; and an engaging element configured to control the interruption of the rotational torque to be reversely input from the output member and the transmission of the rotational torque to be input from the lever-side clutch part through engagement and disengagement between the stationary member (23, 24, 25) and the output member, characterized by a stationary member (23, 24, 25), which is constrained in rotation; an output member configured to output the rotation; and an engaging element configured to control the interruption of the rotational torque to be reversely input from the output member and the transmission of the rotational torque to be input from the lever-side clutch part through engagement and disengagement between the stationary member (23, 24, 25) and the output member, the output member comprising a gear member mounted thereto, which meshes with the stationary member (23, 24, 25) during interruption of the rotational torque and is released from the meshing state with the stationary member (23, 24, 25) during transmission of the rotational torque, and