The gearbox can certainly improve gears with the help of synchronizers. Once the change of gears is total, we launch the lever. At this time, the clutch gets disengaged I.e, the clutch plate gets in connection with the Flywheel once again. The generate is transmitted once more into the gearbox. https://clutch-plate09630.blogitright.com/33131541/about-clutch-kereta