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Scooters & Mopeds
Most modern motor
scooters have smaller wheels than motorcycles,
between eight and 12 inches (20-28 cm) in diameter
(though maxi- and big-wheel scooters may have larger
wheels). |
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Scooters & Mopeds
The scooter engine is usually
found under the seat with a continuously variable
transmission transferring power to the rear wheel,
often in a front-hinged arrangement that allows the
rear of the engine to swing vertically in
conjunction with the motion of the rear wheel. Older Vespas, most vintage scooters, and some newer retro
models have a manual transmission with the gear
shift and clutch built into the left handlebar.
In contrast to most motorcycles, scooters generally
feature bodywork, including a front leg shield and
body that conceals all or most of the mechanicals.
The classic scooter design features a step-thru
frame and a flat floorboard for the rider's feet and
often includes some integral storage space, either
under the seat, built into the front leg shield, or
both.
Most scooters have smaller engines than motorcycles
(between 30 cc and 250 cc with a single cylinder,
though some models have twin cylinder motors). Most
jurisdictions have no legal definition for
"scooter". In general, 50 cc and under scooters are
classified in most states and countries as a moped
and are subject to reduced safety restrictions and
licensing fees. Scooters above 50 cc are generally
legally considered motorcycles, though some states
have an in-between definition for motorized bike for
scooters and motorcycles between 50 and 150 cc.
Until recently, most modern motor scooters came with
air cooled two-stroke cycle engines with automatic
two-stroke oil injection although some of the higher
spec small ones and large ones are water cooled such
as the Honda FC50 or the 2002 Yamaha YQ50s. Scooters
increasingly have four-stroke engines to meet
stricter emissions controls. Trends world-wide have
seen new variations on the classic scooter. A common
variation, the 'big-wheel' or commuter-style scooter
features wheels as large as a motorcycle. Popular
models of the commuter-style bike include the
Aprilia Scarabeo models, the Piaggio Liberty/LT
models, and the Taiwanese Kymco People models.
High-end scooter models now include comprehensive
technological features including cast aluminum
frames, engines with integral counter-balancing, and
cross-linked brake systems. Some of these modern
high-end scooters also come with comfort features
such as windshields, heated hand grips and full
instrumentation (including clock or outside
temperature gauge.)
High-powered electric road scooters are on the
horizon now that small electric motorcycles like the
e-max and the eGO have been released.
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