Hand throttle
The hand throttle is a control element with which the engine output of a motor vehicle can be regulated by hand . Hand throttle controls are less common than the foot-operated accelerator pedal on vehicles with internal combustion engines.
Hand throttle controls are predominantly attached to the handlebars of two-wheeled vehicles or near the steering wheel of four-wheeled vehicles, in addition to the foot-operated throttle. There are different designs: as a hand lever that is operated with a fore-and-aft or up -and-down movement, as a throttle twist grip (twist or winding grip) or a thumb throttle lever .
Hand throttle controls are used on tractors , motorcycles , quads , motor boats and for vehicle retrofitting for physically handicapped people if they cannot use the standard pedals of their vehicle or only to a limited extent.
Colloquially, the speed knob on electric scooters or electric vehicles is also referred to as "hand throttle", although no combustion fuel supply is regulated here.
The hand throttle is increasingly being replaced by the joystick steering or is already identical in terms of the technical functional principle with this or with the speed regulation part thereof.