Clutch device and motorcycle

The utility model relates to a clutch device and a two-wheeled motor vehicle. The clutch device comprises a clutch center part and a clutch body, and a pressure plate which is provided so as to be able to approach or separate from and rotate relative to the clutch center part, and which is capable of pressing the input-side rotating piece and the output-side rotating piece, the clutch center part being provided with: a plurality of center part-side fitting teeth which are arranged in the circumferential direction and which hold the input-side rotating piece and the output-side rotating piece; the outer peripheral wall is formed so as to protrude radially outward from the outer peripheral surface of the outer peripheral wall. And an oil flow path formed at an end portion of the center portion side fitting tooth in the second direction, the oil flow path discharging, to the outside of the clutch center portion, at least clutch oil flowing on the inner peripheral surface side of the outer peripheral wall. 本实用新型涉