The pulley method inside of a CVT includes two pulleys, a person connected to the engine and another into the transmission. The 2 pulleys are linked by a belt or chain. The pulleys are formed like cones, as well as their diameters may be altered to alter the gear ratio. https://gearboxcvt41617.thelateblog.com/34669302/a-secret-weapon-for-gearbox-cvt