Compared to the sophisticated arrays of many hundreds of components in a traditional transmission, a CVT is made up of merely a belt, a driving pulley, a torque-sensing pulley, & a couple of microprocessors and sensors. The CVT gearbox was first patented in 1886 with the arrival from the motorcar. https://travisblpqv.ampblogs.com/helping-the-others-realize-the-advantages-of-gearbox-cvt-70858938