A drive clutch for a CVT comprising a stationary sheave, a movable sheave,
a motor and a centrifugal weight system. The movable sheave is movable
closer to or further from the stationary sheave relative to a
longitudinal axis. The motor may be coupled to an input shaft such that
it is rotatable relative to or independently of the rotation of the input
shaft. The centrifugal weight system is operably connected to the motor
so as to pivot centrifugally outward relative to the longitudinal axis in
response to the rotation of the motor, moving the movable sheave closer
to or further from the stationary sheave.