HowStuffWorks The variable-diameter pulleys are the center of a CVT. Every pulley is product of two twenty-diploma cones going through each other. A belt rides in the groove concerning The 2 cones. The cones can move to boost or decreases the diameter in the belt to alter gear ratios, https://gearbox-cvt31964.dgbloggers.com/32750678/not-known-facts-about-gearbox-cvt