Pressurized ATF acts to the movable 50 % on the pulley, modifying its diameter. “As a result,” mentioned Maldonado, “a CVT transmission continuously changes equipment ratios as the two movable pulley halves slide with a shaft, while the opposite 50 % of the pulley continues to be locked in place.” https://gearboxcvt28494.bloguetechno.com/the-best-side-of-gearbox-cvt-69275579