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Pocketbikes:
A minibike, also known as a pocket rocket or
rocketskate, is a miniaturized version of a
motorcycle. Minibikes usually use two stroke motors
that power a chain to turn the rear wheel, although
electric-powered models are also available. The
2-stroke motor produces a loud, whining buzz and a
suffocating cloud of smog as exhaust.
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Pocketbikes and pocketbike
racing:
These
features, along with the minibike's tiny size, mean
that minibikes are almost never street-legal.
Due to their high speed and design, the rider must
take extra care when riding mini bikes. Even with an
adult rider, minibikes can attain speeds of over
40mph where serious injury can occur from misuse.
Hence riders should wear adequate safety equipment
at all times, including a helmet, elbow pads, knee
pads, gloves and shoes. Minibike riders should be
equipped as the rider in the picture who is wearing
adequate head and knee protection, as well as a pair
of sturdy jeans to prevent chaffing.
Similarly, care should be taken whenever driving on
public roads, and due care and attention taken of
other motorists and pedestrians. Minibikes are
banned in some states and many cities, including New
York City and the entire state of California. Most
police departments will reprimand you or voucher
(confiscate) your vehicle for riding a minibike on
the streets. However a pv. 1 biker test certificate
will permit you to ride a minibike in urban areas
and parklands in the UK.
Pocketbike racing, also know as Minimoto or Mini GP
racing, is a category of racing where miniature
racing motorcycles (known as pocketbikes or minimoto)
are raced around kart tracks. It is a popular sport
in Japan and Europe and is gaining in popularity in
other parts of the world.
A typical minimoto is approximately one-fourth the
size of a regular motorcycle, and is powered by a
two-stroke internal combustion engine of between
40-50 cubic centimetres producing somewhere between
2.4 and 15 horsepower (3 and 10 kW). The machines
have no suspension, relying on the tires to absorb
bumps and handle cornering, and weigh approximately
40 pounds (18 kg). The entry-level models produce
about 2.4 to 4.2 hp, but the more expensive racing
models can have a power output of about 11 - 15 hp.
This provides a power-to-weight ratio favourable to
racing. Performance enhancements (such as nitrous
oxide) are sometimes added to increase speed and
acceleration. Despite their tiny size both adults
and children race them at speeds of up to 78 miles
per hour (to this date) in organized racing leagues.
The ease of transportation and the low cost of the
bikes(they are priced from approximately $200 AU for
a basic model built in China to around $5,000 for a
top of the line Italian model) make them an
affordable way for children (some as young as six)
to learn about motorcycle racing and for adults to
live out their fantasies of racing stardom without
the high costs and risks associated with full-sized
motorcycle racing.
In most countries, a licence is not required to ride
miniature bikes. However, they are usually not
street legal and should be ridden on private land,
such as car parks, gardens or on race tracks.
Miniature motocross motorcycles are also available
for children to learn this form of motorcycling.
Notable racers who learned their craft on minimoto
include Valentino Rossi.
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