{{Short description|International kart racing class}} {{Redirect|KF2|the video game|Killing Floor 2}} {{Use dmy dates|date=August 2019}} {{Use British English|date=June 2025}} {{Infobox motorsport championship | name = OK | logo = | category = Kart racing | region = International | inaugural = {{start date and age|1981}} (as ''Intercontinental A'') | affiliations = CIK-FIA | tyres = | champion driver = {{plainlist| * {{flagicon|BEL}} Thibaut Ramaekers * {{small|(World, 2025)}} * {{flagicon|ESP}} Christian Costoya * {{small|(European, 2025)}} }} | champion team = {{plainlist| * {{flagicon|ITA}} CRG-IAME * {{small|(World, 2024)}} * {{flagicon|ITA}} Kart Republic-IAME * {{small|(European, 2024)}} }} | website = [https://www.fiakarting.com/ Official website] }} {{Kart racing series|categories}}

'''Original Kart''' ('''OK''') is a kart racing class for drivers aged 14 and over, sanctioned by the CIK-FIA. OK is the primary direct-drive class in FIA championships.

The class was originally called '''Intercontinental A''' ('''ICA'''), first introduced in 1981 at the European Championship as a secondary direct-drive class to Formula K. The class was first contested at the World Cup in 2006. In 2007—after 26 seasons of racing—ICA was replaced by '''KF2''' and became the primary class in 2010, replacing KF1 at the World Championship. The KF2 class was renamed to '''KF''' upon the demise of KF1 in 2013, and was replaced by OK regulations in 2016.

OK is contested as the primary direct-drive class at the Karting World Championship and the Karting European Championship.

== History ==

=== Intercontinental A (1981–2006) ===

In 1981, Intercontinental A (ICA) was introduced alongside Formula K as a secondary direct-drive class for the European Championship.

Stefano Modena completed back-to-back ICA European Championships in 1984, a feat that would not be repeated until Andrea Kimi Antonelli under OK regulations in 2021.

The ICA World Cup was introduced in 2006, the final year of ICA regulations, won by French driver Mike Courquin.

=== KF2/KF (2007–2015) ===

In January 2007, the CIK-FIA decided to replace the 100 cc water-cooled two-stroke ICA engines with 125 cc Touch-and-Go (TaG) water-cooled two-stroke KF2 engines, producing {{cvt|34|-|36|hp|kW}}. Now the secondary class to KF1—which had replaced Formula A—the KF2 class karts used hand-operated front brakes via a lever. The chassis had to be CIK-approved, with a minimum weight of 160 kg and 158 kg for national and international events, respectively. KF2 karts were equipped with an electric starter and a centrifugal clutch. The engine was limited to 15,000 rpm.

In 2010, karts of the KF2 category were mandated at the Karting World Championship as the primary direct-drive category, alongside the European Championship, replacing KF1 in both.<ref>{{Cite news |title=KartCafe News - CIK-FIA World Karting Championship For Drivers Zuera (ESP) - 16-19.09.2010 |url=http://www.kartcafe.it/content.php/157-CIK-FIA-World-Karting-Championship-For-Drivers-Zuera-(ESP)-16-19.09.2010?s=f6dc26c7318961e77adbbb4bc927145b&commentid=144579 |archive-url=https://web.archive.org/web/20110722040403/http://www.kartcafe.it/content.php/157-CIK-FIA-World-Karting-Championship-For-Drivers-Zuera-(ESP)-16-19.09.2010?s=f6dc26c7318961e77adbbb4bc927145b&commentid=144579 |archive-date=2011-07-22 |access-date=2025-09-03 |work=KartCafe - Karting MotorSport |language=it}}</ref> KF1 returned to the World Championship in 2011 and 2012, reverting KF2 back to World Cup status, but met its demise at the end of the 2012 season. With the end of KF1 regulations, KF2 became known as simply KF and returned to the World Championship as the primary class once more.

=== Original Kart (2016–present) ===

In 2016, Original Kart (OK) regulations replaced KF in the direct-drive category, after its perceived failure within the kart racing community and restrictive regulations resulted in reduced entries at international competitions.<ref>{{Cite web|url=https://www.fia.com/es/news/official-presentation-new-2016-engines-pf-intl|website=FIA|date=16 June 2015|access-date=20 September 2024 |title=Official presentation of the new 2016 engines at PF Intl }}</ref> OK karts had much of the electronics removed, and had to be push-started.

== Specification ==

=== Original Kart (OK) ===

There are eight main technical features of the OK regulations:<ref>{{Cite web|url=https://www.fiakarting.com/page/fia-karting-categories|title=FIA Karting - Categories|access-date=21 September 2024}}</ref>

* 125&nbsp;cc direct-coupled, water-cooled two-stroke, mixed-lubrication engine.

* Valve inlet in the piston skirt.

* Screw carburettor with a maximum diameter of 24&nbsp;mm.

* Maximum speed (limiter) of 16,000&nbsp;rpm.

* Power valve at the exhaust.

* Single rear brake with hydraulic control.

* Premium tyres, medium gum compound.

* Minimum weight 150&nbsp;kg, driver included.

Engines, chassis, bodywork, brakes and tyres are subject to the homologation system put in place by the CIK-FIA. Each year, the tyres and the fuel for each category, as well as the KZ and KZ2 carburettor, are chosen after a call for tenders.

== Champions == {{See also|List of international kart racing champions#KF / KF2 (2007–2015)|List of international kart racing champions#OK (2016–present)}} OK has been contested at the European Championship since 1981 and the World Championship/World Cup since 2006, becoming the primary direct-drive class in 2010.

Italian driver Lorenzo Travisanutto is the only driver to win multiple OK World Championships. Notable OK World Champions include 2020–21 Formula E World Champion Nyck de Vries and 2025 Formula One champion driver Lando Norris.

Italian Formula One drivers Stefano Modena and Andrea Kimi Antonelli are the only drivers to win multiple OK European Championships. Notable OK European Champions include Formula One World Drivers' Champions Michael Schumacher and Max Verstappen.

=== By year === {{Kart racing champions key}}

{|class="wikitable" style="font-size:85%; text-align:left;" !rowspan="2"|Year !colspan="4"|World Championship !colspan="4"|European Championship !rowspan="2"|Year |- !World Champion{{efn|name=cup|''Italics'' indicates years contested as a World Cup, not an FIA World Championship: 2006–2009, 2011–2012.}} !Chassis !Engine !Tyres !European Champion !Chassis !Engine !Tyres |- !rowspan=2|1981 |align=center colspan=8 style="background:#DDDDDD;"| '''''ICA''' regulations created for the European Championship'' !rowspan=2|1981 |- |align=center colspan=4 rowspan=25 style="background:#DDDDDD;"| ''Not held'' |style="background-color:#EAECF0"|{{flagicon|NED}} Peter De Bruijn | {{flagicon|ITA}} Tecno | {{flagicon|ITA}} Parilla | style="text-align:center;" | |- !1982 |style="background-color:#EAECF0"|{{flagicon|GER}} Josef Bertzen | {{flagicon|GBR}} Zipkart | {{flagicon|ITA}} Parilla | style="text-align:center;" | !1982 |- !1983 |style="background-color:#FBCEB1"|{{flagicon|ITA}} Stefano Modena{{asterisk|alt=Driver has competed in Formula One}} | {{flagicon|ITA}} DAP | {{flagicon|ITA}} DAP | style="text-align:center;" | !1983 |- !1984 |style="background-color:#FBCEB1"|{{flagicon|ITA}} Stefano Modena{{asterisk|alt=Driver has competed in Formula One}} (2) | {{flagicon|ITA}} DAP | {{flagicon|ITA}} DAP | style="text-align:center;" | !1984 |- !1985 |style="background-color:#EAECF0"|{{flagicon|FIN}} Jukka Virtanen | {{flagicon|ITA}} Birel | {{flagicon|ITA}} Parilla | style="text-align:center;" | !1985 |- !1986 |style="background-color:#EAECF0"|{{flagicon|SWE}} Linus Lundberg | {{flagicon|DNK}} Dino | {{flagicon|DNK}} Dino | style="text-align:center;" | !1986 |- !1987 |style="background-color:#D0F0C0"|{{Nowrap|{{flagicon|GER}} Michael Schumacher{{dagger|alt=Driver is a Formula One World Drivers' Champion}}}} | {{flagicon|ITA}} CRG | {{flagicon|ITA}} Parilla | style="text-align:center;" | !1987 |- !1988 |style="background-color:#EAECF0"|{{flagicon|NED}} Martijn Koene | {{flagicon|ITA}} Tony Kart | {{flagicon|AUT}} Rotax | style="text-align:center;" | !1988 |- !1989 |style="background-color:#FBCEB1"|{{flagicon|NED}} Jos Verstappen{{asterisk|alt=Driver has competed in Formula One}} | {{Nowrap|{{flagicon|SWI}} Swiss Hutless}} | {{flagicon|AUT}} Rotax | style="text-align:center;" | !1989 |- !1990 |style="background-color:#EAECF0"|{{flagicon|FRA|1974}} Eddy Coubard |{{flagicon|DNK}} Dino | {{flagicon|AUT}} Rotax | style="text-align:center;" | !1990 |- !1991 |style="background-color:#EAECF0"|{{flagicon|ITA}} Daniele Parrilla |{{flagicon|ITA}} Birel | {{flagicon|AUT}} Rotax | style="text-align:center;" | !1991 |- !1992 |style="background-color:#EAECF0"|{{flagicon|ITA}} Oliver Fiorucci |{{flagicon|ITA}} Merlin | {{flagicon|AUS}} Atomik | style="text-align:center;" | !1992 |- !1993 |style="background-color:#EAECF0"|{{flagicon|FRA|1974}} Arnaud Sarrazin |{{flagicon|ITA}} Tecno | {{flagicon|AUT}} Rotax | style="text-align:center;" | !1993 |- !1994 |style="background-color:#EAECF0"|{{flagicon|BEL}} Narcis Callens |{{flagicon|ITA}} Biesse | {{flagicon|USA}} Fox | style="text-align:center;" | !1994 |- !1995 |style="background-color:#EAECF0"|{{flagicon|FRA|1974}} Arnaud Leconte |{{flagicon|ITA}} Tecno | {{flagicon|AUT}} Rotax | style="text-align:center;" | !1995 |- !1996 |style="background-color:#EAECF0"|{{flagicon|FRA|1974}} Ludovic Veve |{{flagicon|ITA}} Biesse | {{flagicon|AUT}} Rotax | style="text-align:center;" | !1996 |- !1997 |style="background-color:#EAECF0"|{{flagicon|ITA}} Alessandro Balzan | {{flagicon|ITA}} Top-Kart | {{flagicon|ITA}} Comer | style="text-align:center;" | !1997 |- !1998 |style="background-color:#EAECF0"|{{flagicon|FRA|1974}} Julien Poncelet |{{flagicon|ITA}} CRG | {{flagicon|ITA}} CRG | style="text-align:center;" | !1998 |- !1999 |style="background-color:#EAECF0"|{{flagicon|ITA}} Stefano Fabi | {{flagicon|ITA}} Top-Kart | {{flagicon|ITA}} Comer | style="text-align:center;" |{{Bridgestone}} !1999 |- !2000 |style="background-color:#EAECF0"|{{flagicon|FRA|1974}} Julien Menard |{{flagicon|ITA}} Tony Kart | {{flagicon|ITA}} Vortex | style="text-align:center;" | !2000 |- !2001 |style="background-color:#EAECF0"|{{Nowrap|{{flagicon|FRA|1974}} Jean-Philippe Guignet}} |{{flagicon|ITA}} Tony Kart | {{flagicon|ITA}} Vortex | style="text-align:center;" |{{Vega Tyres}} !2001 |- !2002 |style="background-color:#EAECF0"|{{flagicon|BEL}} Jonathan Thonon |{{flagicon|ITA}} CRG | {{flagicon|ITA}} Maxter | style="text-align:center;" |{{Vega Tyres}} !2002 |- !2003 |style="background-color:#EAECF0"|{{flagicon|ITA|2003}} Nicola Bocchi |{{flagicon|ITA|2003}} CRG | {{Nowrap|{{flagicon|ITA|2003}} Maxter}} | style="text-align:center;" |{{Vega Tyres}} !2003 |- !2004 |style="background-color:#CEDFF2"|{{flagicon|FRA|1974}} Kévin Estre{{double dagger|alt=Driver is an FIA World Champion in an auto racing discipline}} |{{flagicon|FRA|1974}} Sodi | {{flagicon|ITA|2003}} TM | style="text-align:center;" |{{Vega Tyres}} !2004 |- !2005 |style="background-color:#CEDFF2"|{{flagicon|GBR}} James Calado{{double dagger|alt=Driver is an FIA World Champion in an auto racing discipline}} |{{flagicon|ITA|2003}} Tony Kart | {{flagicon|ITA|2003}} Vortex | style="text-align:center;" |{{Bridgestone}} !2005 |- !rowspan=2|2006 |align=center colspan=8 style="background:#DDDDDD;"| '''''ICA''' mandated at the World Cup'' !rowspan=2|2006 |- |style="background-color:#EAECF0"|''{{flagicon|FRA|1974}} Mike Courquin'' | ''{{flagicon|FRA|1974}} Sodi'' | ''{{flagicon|ITA}} TM'' | style="text-align:center;" |{{Vega Tyres}} |style="background-color:#EAECF0"|{{flagicon|ITA}} Nicola Nolé |{{flagicon|ITA}} CRG | {{flagicon|ITA}} TM | style="text-align:center;" |{{Vega Tyres}} |- !rowspan=2|2007 |align=center colspan=8 style="background:#DDDDDD;"| '''''ICA''' replaced by '''KF2''''' !rowspan=2|2007 |- |style="background-color:#EAECF0"|''{{flagicon|GBR}} Michael Ryall'' | ''{{flagicon|ITA}} Birel'' | ''{{flagicon|ITA}} TM'' | style="text-align:center;" |{{Dunlop}} |style="background-color:#FBCEB1"|{{flagicon|GBR}} Will Stevens{{asterisk|alt=Driver has competed in Formula One}} |{{flagicon|ITA}} Tony Kart | {{flagicon|ITA}} Vortex | style="text-align:center;" |{{Dunlop}} |- !2008 |style="background-color:#EAECF0"|''{{flagicon|GBR}} Oliver Rowland'' |''{{flagicon|ITA}} Tony Kart'' | ''{{flagicon|ITA}} Vortex'' | style="text-align:center;" | |style="background-color:#EAECF0"|{{flagicon|ITA}} Flavio Camponeschi |{{flagicon|ITA}} Tony Kart | {{flagicon|ITA}} Vortex | style="text-align:center;" | !2008 |- !2009 |style="background-color:#EAECF0"|''{{flagicon|POR}} David da Luz'' | ''{{flagicon|ITA}} Zanardi'' | ''{{flagicon|ITA}} Parilla'' | style="text-align:center;" | |style="background-color:#EAECF0"|{{flagicon|GBR}} Jordan Chamberlain |{{flagicon|ITA}} Tony Kart | {{flagicon|ITA}} TM | style="text-align:center;" | !2009 |- !rowspan=2|2010 |align=center colspan=8 style="background:#DDDDDD;"| '''''KF2''' becomes the primary direct-drive class and upgraded to World Championship status'' !rowspan=2|2010 |- |style="background-color:#cedff2"|{{Nowrap|{{flagicon|NED}} Nyck de Vries{{asterisk|alt=Driver has competed in Formula One}}{{double dagger|alt=Driver is an FIA World Champion in an auto racing discipline}}}} | {{Nowrap|{{flagicon|ITA}} Zanardi}} | {{Nowrap|{{flagicon|ITA}} Parilla}} | style="text-align:center;" |{{Bridgestone}} |style="background-color:#EAECF0"|{{Nowrap|{{flagicon|DNK}} Nicolaj Møller Madsen}} | {{Nowrap|{{flagicon|ITA}} Energy Corse}} | {{flagicon|ITA}} TM | style="text-align:center;" |{{Bridgestone}} |- !rowspan=2|2011 |align=center colspan=8 style="background:#DDDDDD;"| '''''KF2''' replaced by KF1 at the World Championship and downgraded to World Cup status''{{efn|KF2 remained the primary direct-drive class at the European Championship in 2011 and 2012.}} !rowspan=2|2011 |- | style="background-color:#EAECF0"|''{{flagicon|ITA}} Loris Spinelli'' | ''{{flagicon|ITA}} Tony Kart'' | {{Nowrap|''{{flagicon|ITA}} Vortex''}} | style="text-align:center;" |{{Vega Tyres}} |style="background-color:#EAECF0"|{{flagicon|BEL}} Sami Luka | {{flagicon|ITA}} Intrepid | {{flagicon|ITA}} TM | style="text-align:center;" |{{Bridgestone}} |- !2012 |style="background-color:#EAECF0"|''{{flagicon|ITA}} Felice Tiene'' | ''{{flagicon|ITA}} CRG'' | ''{{flagicon|ITA}} BMB'' | style="text-align:center;" |{{Vega Tyres}} |style="background-color:#EAECF0"|{{flagicon|GBR}} Ben Barnicoat | {{flagicon|FRA|1974}} ART | {{Nowrap|{{flagicon|ITA}} Parilla}} | style="text-align:center;" |{{Vega Tyres}} !2012 |- !rowspan=2|2013 |align=center colspan=8 style="background:#DDDDDD;"| '''''KF2''' renamed to '''KF''' and upgraded to World Championship status'' !rowspan=2|2013 |- |style="background-color:#EAECF0"|{{flagicon|GBR}} Tom Joyner |{{flagicon|ITA}} Zanardi |{{flagicon|ITA}} TM | style="text-align:center;" |{{Vega Tyres}} |style="background-color:#D0F0C0"|{{flagicon|NED}} Max Verstappen{{dagger|alt=Driver is a Formula One World Drivers' Champion}} | {{flagicon|ITA}} CRG | {{flagicon|ITA}} TM | style="text-align:center;" |{{Vega Tyres}} |- !2014 |style="background-color:#D0F0C0"|{{flagicon|GBR}} Lando Norris{{dagger|alt=Driver is a Formula One World Drivers' Champion}} |{{Nowrap|{{flagicon|ITA}} FA Kart}} |{{Nowrap|{{flagicon|ITA}} Vortex}} | style="text-align:center;" |{{Dunlop}} |style="background-color:#EAECF0"|{{flagicon|GBR}} Callum Ilott | {{flagicon|ITA}} Zanardi | {{flagicon|ITA}} Parilla | style="text-align:center;" |{{Bridgestone}} !2014 |- !2015 |style="background-color:#EAECF0"|{{flagicon|POL}} Karol Basz |{{flagicon|ITA}} Kosmic |{{flagicon|ITA}} Vortex | style="text-align:center;" |{{Vega Tyres}} |style="background-color:#EAECF0"|{{flagicon|GBR}} Ben Hanley | {{flagicon|ITA}} Mad-Croc | {{flagicon|ITA}} TM | style="text-align:center;" |{{Vega Tyres}} !2015 |- !rowspan=2|2016 |align=center colspan=8 style="background:#DDDDDD;"| '''''KF''' replaced by '''OK''''' !rowspan=2|2016 |- |style="background-color:#EAECF0"|{{Nowrap|{{flagicon|ESP}} Pedro Hiltbrand}} | {{flagicon|ITA}} CRG | {{flagicon|ITA}} Parilla | style="text-align:center;" |{{Vega Tyres}} |style="background-color:#EAECF0"|{{flagicon|ESP}} Pedro Hiltbrand | {{flagicon|ITA}} CRG | {{flagicon|ITA}} Parilla | style="text-align:center;" |{{Vega Tyres}} |- !2017 |style="background-color:#EAECF0"|{{flagicon|GBR}} Danny Keirle |{{flagicon|ITA}} Zanardi |{{flagicon|ITA}} Parilla | style="text-align:center;" |{{LeCont}} |style="background-color:#EAECF0"|{{flagicon|MAR}} Sami Taoufik | {{flagicon|ITA}} FA Kart | {{Nowrap|{{flagicon|ITA}} Vortex}} | style="text-align:center;" |{{LeCont}} !2017 |- !2018 |style="background-color:#EAECF0"|{{Nowrap|{{flagicon|ITA}} Lorenzo Travisanutto}} | {{Nowrap|{{flagicon|ITA}} Kart Republic}} | {{flagicon|ITA}} Parilla | style="text-align:center;" |{{Bridgestone}} |style="background-color:#EAECF0"|{{flagicon|GER}} Hannes Janker | {{Nowrap|{{flagicon|ITA}} Kart Republic}} | {{flagicon|ITA}} Parilla | style="text-align:center;" |{{Bridgestone}} !2018 |- !2019 |style="background-color:#EAECF0"|{{Nowrap|{{flagicon|ITA}} Lorenzo Travisanutto (2)}} | {{Nowrap|{{flagicon|ITA}} Kart Republic}} | {{flagicon|ITA}} Parilla | style="text-align:center;" |{{LeCont}} |style="background-color:#EAECF0"|{{flagicon|ITA}} Lorenzo Travisanutto | {{Nowrap|{{flagicon|ITA}} Kart Republic}} | {{flagicon|ITA}} Parilla | style="text-align:center;" |{{LeCont}} !2019 |- !2020 |style="background-color:#EAECF0"|{{flagicon|GBR}} Callum Bradshaw |{{flagicon|ITA}} Tony Kart |{{flagicon|ITA}} Vortex | style="text-align:center;" |{{LeCont}} |style="background-color:#FBCEB1"|{{flagicon|ITA}} Andrea Kimi Antonelli{{asterisk|alt=Driver has competed in Formula One}} | {{Nowrap|{{flagicon|ITA}} Kart Republic}} | {{flagicon|ITA}} Parilla | style="text-align:center;" |{{LeCont}} !2020 |- !2021 |style="background-color:#EAECF0"|{{flagicon|FIN}} Tuukka Taponen |{{flagicon|ITA}} Tony Kart |{{flagicon|ITA}} Vortex | style="text-align:center;" |{{MG Tires}} |style="background-color:#FBCEB1"|{{Nowrap|{{flagicon|ITA}} Andrea Kimi Antonelli{{asterisk|alt=Driver has competed in Formula One}} (2)}} | {{Nowrap|{{flagicon|ITA}} Kart Republic}} | {{flagicon|ITA}} IAME | style="text-align:center;" |{{MG Tires}} !2021 |- !2022 |style="background-color:#EAECF0"|{{flagicon|BRA}} Matheus Morgatto |{{flagicon|ITA}} Kart Republic |{{flagicon|ITA}} Parilla | style="text-align:center;" |{{MG Tires}} |style="background-color:#EAECF0"|{{Nowrap|{{flagicon|GBR}} Kean Nakamura-Berta}} | {{Nowrap|{{flagicon|ITA}} Kart Republic}} | {{flagicon|ITA}} IAME | style="text-align:center;" |{{MG Tires}} !2022 |- !2023 |style="background-color:#EAECF0"|{{flagicon|white}} Kirill Kutskov |{{flagicon|ITA}} Kart Republic |{{flagicon|ITA}} IAME | style="text-align:center;" |{{MG Tires}} |style="background-color:#EAECF0"|{{flagicon|NLD}} René Lammers | {{Nowrap|{{flagicon|ITA}} Parolin}} | {{flagicon|ITA}} TM | style="text-align:center;" |{{MG Tires}} !2023 |- !2024 |style="background-color:#EAECF0"|{{flagicon|GBR}} Ethan Jeff-Hall |{{flagicon|ITA}} CRG |{{flagicon|ITA}} IAME | style="text-align:center;" |{{Maxxis}} |style="background-color:#EAECF0"|{{flagicon|GBR}} Joe Turney | {{Nowrap|{{flagicon|ITA}} Kart Republic}} | {{flagicon|ITA}} IAME | style="text-align:center;" |{{Maxxis}} !2024 |- !rowspan="2"|Year !World Champion{{efn|name=cup}} !Chassis !Engine !Tyres !European Champion !Chassis !Engine !Tyres !rowspan="2"|Year |- !colspan="4"|World Championship !colspan="4"|European Championship |- !colspan="10"|Source:<ref name="FIA">{{cite web|title=FIA Karting - History|access-date=18 September 2024|url=https://www.fiakarting.com/history|website=FIA Karting}}</ref><ref name="FIAK">{{Cite web|url=https://www.fiakarting.com/competition-list|title=FIA Karting - Calendar|access-date=18 September 2024|website=FIA Karting}}</ref><ref name="Vroom">{{cite magazine|date=January 2016|title=Vroom Kart International #175 - January 2016|access-date=18 September 2024|url=https://issuu.com/vroomkartinternational/docs/vroom_int._175_lr|magazine=Vroom International Karting|archive-date=18 September 2024|archive-url=https://web.archive.org/web/20240918191252/https://issuu.com/vroomkartinternational/docs/vroom_int._175_lr|url-status=dead}}</ref><ref name="MST20">{{cite web|title=Automobile Championships - Motorsport Top 20|access-date=18 September 2024|url=https://motorsporttop20.com/updates/automobile-championships/|website=Motorsport Top 20}}</ref><ref name="OK">{{cite web|title=FIA Karting European OK Championship - Driver Database|access-date=18 September 2024|url=https://www.driverdb.com/championships/cik-fia-european-championship-ok/2023|website=Driver Database}}</ref><ref name="KF">{{cite web|title=FIA Karting European KF Championship - Driver Database|access-date=18 September 2024|url=https://www.driverdb.com/championships/european-championship---kf2/2015|website=Driver Database}}</ref> |}

=== By driver ===

table

==Notes== {{notelist}}

==See also==

* KF1 – the primary direct-drive class from 2003 to 2012 * OK-Junior – the junior direct-drive class * KZ – the primary gearbox class * KZ2 – the secondary gearbox class * Superkart – 250cc kart racing class * CIK-FIA * List of kart racing championships

==References== {{Reflist}}

==External links== * [http://www.fiakarting.com FIA Karting]

{{Kart racing}} {{FIA}} {{Class of Auto racing}}

{{DEFAULTSORT:OK}} Category:Kart racing classes Category:Recurring sporting events established in 1981