Manual transmission, also referred to as a “standard transmission” (and less commonly, a manual gearbox), is a type of transmission that utilizes a clutch that is manually operated by the driver, hence the name. The clutch is engaged and disengaged by a foot pedal for automobiles or by a hand lever for motorcycles and similar vehicles, and by a hand (automobile) or foot (motorcycle) operated gearstick. A conventional 5-speed model is most often the standard equipment for a base-model car. Manual transmission is characterized by certain gear ratios that can be selected by locking the selected pair of gears to the output shaft inside the system.