Conversely, the opposing pulley closes, forcing the chain far from the shaft and expanding the productive gearing. It sounds complex however the theory is pretty very simple. The CVT gearbox was initially patented in 1886 Using the arrival of the motorcar. The CVT became more mainstream due to DAF’s ‘Variomatic’ https://gearbox-cvt07383.shoutmyblog.com/33328108/everything-about-gearbox-cvt