In a conventional computerized transmission, the gears are literally gears -- interlocking, toothed wheels that assist transmit and modify rotary movement and torque. A mix of planetary gears makes all of the different gear ratios the transmission can make, ordinarily 4 forward gears and 1 reverse gear. Pulley-dependent CVTs https://edgargpuya.qodsblog.com/32352482/facts-about-gearbox-cvt-revealed