POWER TRANSMISSION DEVICE

摘要

To provide a power transmission device which transmits power of an internal combustion engine of a saddle-ride type vehicle such as a motorcycle to an output side by way of a transmission and includes a start clutch which connects power transmitted from the transmission to an output side when the saddle-ride-type vehicle starts and disconnects the power when the saddle-- ride-type vehicle stops, wherein the transmission device can reduce a load applied to the internal combustion engine at the time of starting the saddle--ride-type vehicle and can suppress the increase of a lateral width of the internal combustion engine. The power transmission device includes, in addition to a start clutch, a transmission input clutch which disconnects power transmitted from an internal combustion engine to a transmission when the internal combustion engine starts. The transmission input clutch is arranged on a drive pulley shaft of a continuously variable transmission.