In a traditional computerized transmission, the gears are pretty much gears -- interlocking, toothed wheels that enable transmit and modify rotary movement and torque. A mix of planetary gears creates all of the various equipment ratios the transmission can make, commonly 4 ahead gears and 1 reverse equipment. A CVT https://elliotteknoo.liberty-blog.com/34297489/gearbox-cvt-an-overview