| All-terrain vehicle (ATV) or quad is a small vehicle similar to motorcycle but having more than two wheels. According to ANSI, quad must have the following features:
tires, designed for low pressure;
driver sits atop on the seat;
cycle type handle;
must be one or two seater ;
Most of the ATVs have four wheels, such ATVs are called quads or four-wheeled ATVs. Some of the ATVs have three wheels (three-wheelers or tricycles). Also, there are ATVs with 6 or 8 wheels.
Conventionally, all the ATVs can be divided into two types – utility and sports. Utility ATVs are meant for entertainment rides and for domestic usage, the latter quads are used for sports purpose.
Two stroke as well as four-stroke engines are used in ATVs. Utility quads are basically equipped with continuous variable transmission (CVT) with reverse motion, which sometimes have lowered transmission. Sports quads are mostly equipped with mechanical transmission. Among utility ATVs there are all-wheel drive models also, with attachable front axle. Drive is mainly executed by the chain on rear axle, in case of full drive – cardan transmission. |
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