Motocross refers to a special type of motorcycle racing that takes place on carved-out courses made from dirt. In addition to racing, motocross also includes the genre of freestyle. Freestyle motocross riders execute tricks off of inclined ramps made from hard plastic or dirt. Motocross bikes differ from conventional motorcycles used for riding on the road. Motocross riders require a lighter bike for better maneuverability.
History
According to Freestyle-Motocross, "In 1924, the first known British off-road event known as the Scrambles was held at Camberley in Surrey. This would become the earliest known origin of freestyle motocross as we know it today." These early motocross bikes were modified from conventional street motorcycles. Riders would remove accessories such as the headlights and speedometers to cut down on the weight of the bikes. Motocross technology has steadily improved since the 1930s and still has the goal of creating faster and lighter bikes.
Function
Motocross riders use their bikes to race fellow competitors on designated tracks. Racing was one of the earliest forms of motocross. Motocross eventually broke into different disciplines including freestyle and super-cross. Freestyle riders commonly use their bikes to perform tricks off of backyard ramps. Freestyle tricks remain very dangerous and include riders lifting themselves off the seat of the bike. Super-cross is a mix between both racing and freestyle and has become a popular spectator sport held in large arenas. Super-cross riders use their bikes to race fellow competitors while hitting large ramps throughout the course.
Features
Motocross bikes commonly feature either a two-stroke or four-stroke engine. Two-stroke engines became increasingly popular as motocross technology improved. Two-stroke engines have more power than the weaker four-stroke models. Motocross bikes also feature suspensions that are capable of withstanding the shock of the jumps that riders commonly perform. In more recent years, motocross bikes became equipped with a water-cooling system that prevents the bike from overheating. Freestyle motocross bikes feature holes cut out into the opposing sides of the seat. Freestyle riders insert their hands into the seat holes to hold the bike during tricks.
Size
Motocross bikes are built to fit riders of all heights. Companies produce a 50cc model of motocross bike specifically sized for small children just starting out. The motocross rider can slowly increase the size of his bike as he continues to grow. Medium-sized riders can be comfortably accommodated on a 250cc motocross bike. Larger riders often opt for the 450cc motocross bike.
Prevention/Solution
Improper use of a motocross bike can lead to serious bodily harm. Top-of-the-line motocross bikes can reach speeds of more than 60 mph. Professional motocross riders wear multiple pieces of safety gear to prevent injury. Motocross riders use full helmets, which cover the neck as well as the jaw and chin. Motocross riders also dress in pants and shirts that have cushioned pads stitched into the lining.
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