Pocketbike racing, which is also known in some places as Minimoto or Mini GP racing, is a racing that is doine with the use of miniature racing motorcycles, which are known most commonly as pocket bikes. These bikes are raced around kart tracks. It is an extremely popular sport in Japan and Europe, and is gaining in popularity in other parts of the world, particularly in the United States.
A typical pocket bike is roughly one quarter the size of a normal motorcycle, and is powered by an internal combustion engine of between 40-50 cubic centimetres producing somewhere between 3 and 15 horsepower, depending on the particular model. The machines have no suspension, relying on the tires to absorb bumps and handle cornering, and most weigh right about 40 pounds. The entry-level models often produce about 3 to 4 horsepower, but the more expensive racing models run with much more power. The best pocket bikes for racing are ones that provide a favorable power-to-weight ratio. Performance enhancements are sometimes added to increase speed and acceleration. Despite their tiny size, both adults and children race pocket bikes at speeds of up to 60 miles per hour in organized...