CLUTCH UNIT FOR VEHICLE

A clutch unit for a vehicle is provided with a rotation prevention member (53) which, in order to prevent co-rotation of an input-side outer ring member (52) caused by an input-side inner ring member (51) when an operation for returning an operation lever (21) to a neutral position occurs, biases the input-side outer ring member (52) in the rotational axis direction and imparts rotational resistance force that is greater than the force causing co-rotation. A release bracket (pressing force transmission part) (64), which transmits to an output-side clutch collar (65) the force with which the rotation prevention member (53) biases in the rotational axis direction, is provided on the input-side outer ring member (52).