What is the gear ratio of a transmission?

[VanIker]

Gear ratio refers to altering the gear ratio of the vehicle's main reducer. All vehicle rear axles are equipped with a reducer, which reduces the rotational speed from the driveshaft. The gear ratio is the transmission ratio—for example, if the driveshaft rotates at 4.1 r/s, it will be reduced to 1 r/s. The relationship between gear ratio and torque: The larger the gear ratio, the greater the output torque and the slower the output speed; the smaller the gear ratio, the smaller the output torque and the faster the output speed. Common applications of gear ratio: To achieve greater power (torque) output for climbing hills or heavy loads, selecting a relatively larger main gear ratio (such as 6.833) can meet the demand, but it also sacrifices vehicle speed.