A snowmobile is a land vehicle propelled by track at the rear and
ski(s) up front for steering. Early snowmobiles used rubber tracks, however a modern snowmobile will have a track made of a kevlar composite. They are designed to be operated on
snow and
ice, and require no
road or trail. Most snowmobiles are typically powered by
two-stroke gasoline/petrol
internal combustion engines.
Four-stroke engines are becoming more and more popular in snowmobiles. Summertime occupations for snowmobile enthusiasts can also involve
drag racing on
grass,
asphalt strips, or even across water. People who ride them commonly are known as snowmobilers. The three main types of riding are Snowcross/racing, trail riding and mountain climbing.
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