A manual transmission is composed of gear sets with different gear ratios, and its working principle is to change gear ratios by switching between different gear sets.
As a crucial component for power distribution, a transmission must have a power input shaft and an output shaft. These, along with the gears that make up the transmission, are the most basic components of a manual transmission. The power input shaft is connected to the clutch, and the power transmitted from the clutch is directly transferred to the gear set via the input shaft. Gear sets are composed of gears with different diameters. Different gear ratios achieve completely different power transmission effects. Shifting gears during normal driving refers to changing the gear ratio.
