[strictlypersonl]

A CVT uses two variable-diameter pulleys connected by a rubber or steel belt. As one pulley diameter gets smaller, the other gets larger so that the length of the belt stays the same but the gearing ratio changes.

A centrifugal clutch is not a CVT, it's just an automatic clutch that uses something like brake shoes that are thrown outward against a drum (that drives the wheels indirectly) as rpm increase so that they are disengaged at low speeds and lock up at high speeds.