ATV racing on a motocross track
Sport models are built with performance, rather than utility, in mind. To be successful at fast trail riding, an ATV must have light weight, high power, good suspension and a low center of gravity. These machines can be modified for such racing disciplines as motocross, woods racing (also known as cross country), desert racing (also known as Hare Scrambles), hill climbing, ice racing, speedway, Tourist Trophy (TT), flat track, drag racing and others.
Flip during the Klaperjaht off-road race in Estonia, 2009


ATVs in New Brunswick, Canada Note that one of them is plated, an obligation in New Brunswick to legally cross and roll on roads for a maximum of a few hundred meters.

Quadbike adapted for spraying weedkiller, Wythenshawe, Manchester, UK
ATVs in New Brunswick, Canada Note that one of them is plated, an obligation in New Brunswick to legally cross and roll on roads for a maximum of a few hundred meters.
Quadbike adapted for spraying weedkiller, Wythenshawe, Manchester, UK
An all-terrain vehicle (ATV), also known as a quad, quad bike, three wheeler, or four wheeler, is defined by the American National Standards Institute (ANSI) as a vehicle that travels on low pressure tires, with a seat that is straddled by the operator, along with handlebars for steering control. As the name implies, it is designed to handle a wider variety of terrain than most other vehicles. Although it is a street-legal vehicle in some countries, it is not street legal within most states and provinces of Australia, the United States, Canada, or the United Kingdom. In the UK, a recent variant class of ATV is now road-legal, but there are few models available in
this class.
The ATV is commonly called a quad (bike) in Australia, New Zealand, South Africa, the United Kingdom and parts of Canada and the United States. They are used extensively in agriculture, because of their speed and light footprint.