The friction bands are often used for manually chosen gears (including minimal assortment or reverse) and run about the planetary drum's circumference. Bands will not be applied once the travel/overdrive variety is selected, the torque becoming transmitted by the sprag clutches in its place. Working theory for the pulley-dependent CVT https://gearbox-auto87520.dailyhitblog.com/39214250/5-simple-statements-about-gearbox-auto-explained