HowStuffWorks The variable-diameter pulleys are the heart of the CVT. Each individual pulley is crafted from two twenty-diploma cones struggling with each other. A belt rides within the groove among the two cones. Dutch carmaker DAF popularised the CVT with its selection of town vehicles during the nineteen sixties https://cvt43196.digitollblog.com/32138152/new-step-by-step-map-for-gearbox-cvt