ATV stands for All-Terrain Vehicle. It is a four-wheeled vehicle designed for off-road use, and is also known as a quad bike or four-wheeler. ATVs are typically used for recreational purposes, such as trail riding, racing, hunting, or farming. ATVs are equipped with large, low-pressure tires and a suspension system that allows them to traverse rough terrain with ease. They are powered by either a gasoline or electric engine, and have a continuously variable transmission (CVT) that allows the rider to easily shift gears without the need for a clutch. ATVs come in a range of sizes and styles, from small, single-rider models to larger, multi-passenger vehicles. Some ATVs are designed for specific purposes, such as hunting or farming, and may be equipped with accessories such as cargo racks, winches, or plows. While ATVs can be a fun and useful tool, they can also be dangerous if not used properly. It is important to wear proper safety gear, such as a helmet and protective clothing, and to ride at a safe speed and on designated trails or areas. Many countries have specific laws and regulations regarding the use of ATVs, and it is important to be familiar with these rules before operating an ATV.