CVTs may possibly use hydraulic pressure, centrifugal pressure or spring stress to develop the pressure essential to adjust the pulley halves. In a hydrostatic CVT, the successful "equipment ratio" involving the motor and the driving wheel(s) is the result of a distinction between the pump's displacement—expressed as cubic inches https://gearboxcvt09753.blogdigy.com/the-best-side-of-gearbox-cvt-48350967