A Constantly Variable Transmission (CVT) is a form of automatic transmission that could seamlessly alter via a constant selection of helpful gear ratios. It doesn't have mounted gears like a standard automatic or handbook transmission. The 2nd pulley is called the driven pulley because the 1st pulley is turning it. https://keeganccawt.blogoscience.com/38891434/an-unbiased-view-of-gearbox-cvt