Clutch device and motorcycle

A clutch device to allow or interrupt transfer of a rotation driving force of an input shaft to an output shaft, the clutch device comprising:

• a clutch center housed in a clutch housing configured to be rotationally driven by the input shaft and holding a plurality of input-side rotating plates rotatable together with and axially displaceable relative to the clutch housing, the clutch center configured to be rotationally driven together with the output shaft;
• and
• a pressure plate movable toward or away from and rotatable relative to the clutch center, holding a plurality of output-side rotating plates rotatable together with and axially displaceable relative to the pressure plate, and operable to press the input-side rotating plates and the output-side rotating plates, the input-side rotating plates and the output-side rotating plates being alternately arranged;
• wherein
• assuming directions in which the pressure plate moves toward or away from the clutch center are movement directions, a direction in which the pressure plate moves toward the clutch center is a first direction, and a direction in which the pressure plate moves away from the clutch center is a second direction;
• the pressure plate includes:
• a ring-shaped outer peripheral wall extending along the movement directions;
• a plurality of pressure-side fitting teeth holding the output-side rotating plates, projecting radially outward from an outer peripheral surface of the outer peripheral wall, and arranged in circumferential directions;
• and
• an oil channel located in an end portion of at least one of the pressure-side fitting teeth in the first direction;
• and
• the oil channel allows clutch oil flowing at least at an inner peripheral surface of the outer peripheral wall to be discharged to outside of the pressure plate.