Quite simply, torque ratios are reached when the v-belt rotates on the decreased cross portion in the input pulleys and at the larger cross portion in the output pulley. In an epicyclic CVT (also called a planetary CVT), the gear ratio is shifted by tilting the axes of spherical rollers https://gearbox-cvt38268.blogs100.com/33160638/the-best-side-of-gearbox-cvt