125 Shifter Kart Engines

The Kart is a term of North American origin derived from the word “cart”, which
literally means wheelbarrow or cart, and generically indicates a structure vehicle
rustic The Kart is a small motor vehicle, with rigid frame and lacking in

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“Calculation and design of the transmission for a Kart
starting from elements of a Honda CBR 600F ”
body and suspension that emerged in the United States as a toy to satisfy
automotive aspirations of the youngest, was spreading all over the world
until becoming one of the most fashionable sports in the sixties.
The first commercial Kart was built in August 1956 by Arte Ingels in
California with a motor of a lawn mower. As an example this would be one of the first
Karts marketed for competition.
Image. 1.2 Art Ingels
In the first years of its spread in Europe it was known as go-kart,
taking the expression that defined the first copies and that was later
turned into the industrial brand of a firm specialized in the construction of such
vehicles. The karts developed in the early stages under different forms in each
nation, its construction being conditioned, well to the motoristic traditions as to
the materials that were available.
In this way, while in the United States, even from the beginning, it became available
lightweight frames with small wheels driven by light industrial motors, in
Europe, the first specimens were characterized by a solid appearance, with wheels of
scooter and powered by motorcycle engines with gear change.
In Spain, the Karting began to gain strength in the 70’s with Jorge
Sources. This was the first kart with which Jorge Fuentes began to compete.

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“Calculation and design of the transmission for a Kart
starting from elements of a Honda CBR 600F ”
Image. 1.3 Jorge Fuentes
Subsequently, with the international racing dispute (the first Trophy
International was developed in the Bahamas, in 1959), regulations were established
precise and was universally adopted a subdivision into categories: 100 and 200 cc with
direct transmission and 155 cc with change.
Later, the superior category was suspended, due to the notable possible benefits
with the 100 cc karts without change, much faster thanks to the maneuverability and
power of the engines, which came to touch the specific power of 200 HP
retaining a remarkable elasticity, indispensable for the lack of change.
With its great diffusion, the kart managed to attract the attention of motorcycle brands,
who built expressly designed frames and engines. Later, with the
greater specialization and the emergence of professionalism, these vehicles lost their
characteristics of simplicity and economy and thus in the period of greatest
splendor, this sport went into crisis.
Technically, the kart presents numerous particular characteristics: the lack of
Suspensions and the rigid rear axle without differential force a balanced driving in
the curves, characterized by a succession of controlled skids. Normally, only
They have a disc brake mounted on the rear axle. The management, although it retains
characteristic angles of automobiles, is deprived of demultiplication.
Despite its essential structure and the particular mechanical characteristics, the kart
has represented for many technicians and pilots, a test bed and an introduction to
the most refined forms of sports motorsport.
A curious example of inheritance that the automobile has received from the kart is represented
for the use of slick tires (covers without drawing) that used only previously
by the dragsters, they had their first international diffusion in karts.