OK-Junior is a
kart racing
Kart racing or karting is a motorsport discipline using open-wheel, four-wheeled vehicles known as go-karts or shifter karts. They are usually raced on kart circuit, scaled-down circuits, although some professional kart races are also held on fu ...
class for top drivers aged 11 to 15 (drivers must reach the age of 12 within the first semester of calendar year).
This class used to be called Junior Intercontinental A (JICA or ICA-J) and has changed since January 2007 when
CIK-
FIA decided to replace the 100 cc air-cooled
two-stroke
A two-stroke (or two-stroke cycle) engine is a type of internal combustion engine that completes a power cycle with two strokes of the piston, one up and one down, in one revolution of the crankshaft in contrast to a four-stroke engine which re ...
engines with 125 cc Touch-and-Go (TaG) water-cooled two-stroke engines (KF type).The engines produce . The chassis and engines must be approved by the CIK-FIA. Minimum weight is 145 kg, including kart and driver.
Karts are equipped with an electric starter and clutch. The engine
rpm
Revolutions per minute (abbreviated rpm, RPM, rev/min, r/min, or r⋅min−1) is a unit of rotational speed (or rotational frequency) for rotating machines.
One revolution per minute is equivalent to hertz.
Standards
ISO 80000-3:2019 def ...
is limited to 14,000 rpm.
It is one of the highest kart classes with national championships (perhaps with different tyre rules).
There is a European championship, a World Cup, as well as Oceania and Asia-Pacific championships. The
Junior Monaco Kart Cup is taking place each year in this format.
For 2013 the class was renamed KF-Junior.
In 2016, the karts were completely re-designed by removing much of the electronics. The karts are now push started. The class was subsequently renamed OK-Junior, standing for Original Kart.
Champions
World
Europe
See also
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KF1, the top level of karting
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KF2, another KF1 feeder series besides KF3
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KZ1, the fastest KZ karting racing category
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KZ2
KZ2 is a kart racing class using 125 cc water-cooled two-stroke engines yielding about . The engines are equipped with a 6-speed gearbox. Z2 is the second fastest of the KZ karting racing categories, and technical regulations are similar to faster ...
, the second fastest KZ karting racing category
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Superkart
Superkart is a form of motorsport road racing that uses karts on long circuits. The bigger difference between a superkart and most other forms of kart is that they have full aerodynamic bodykits, as well as having a longer wheel base than sprint ...
, road racing with kart sized open-wheel cars
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Karting World Championship
The FIA Karting World Championship, officially known as the Mondokart.com FIA Karting World Championship for sponsorship reasons, is a kart racing competition organised by the CIK-FIA. Hosted annually since 1964, it is widely regarded as the ...
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Karting European Championship
The FIA Karting European Championship, officially known as the Mondokart.com FIA Karting European Championship for sponsorship reasons, is a kart racing competition organised by the CIK-FIA. Alongside the Karting World Championship, it is one ...
References
External links
CIK-FIA – International Karting Governing Body
{{Class of Auto racing
Kart racing series