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KZ2 is a kart racing class using 125 cc water-cooled two-stroke engines yielding about 52 hp (39 kW). 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 KZ1 except that in KZ2 the gearbox must be "hand-operated and exclusively mechanical without a servo system", as well as the use of medium tires.[1] Both the engine and chassis must be approved by the CIK-FIA racing governing commission. The class is open to drivers aged 15 years and up with the minimum weight being 175 kg, this includes the kart and driver.

The KZ2 class used to be called Intercontinental C (ICC) and was renamed by the CIK-FIA in January 2007.

The KZ2 class is run in both national and continental championships and is popular in Europe and the USA. In the UK, since the beginning of 2019, The Motorsport UK run championship is the only British Championship and runs to CIK regulations with Le Cont tyres. The NKF Super 4 series continues as KZ UK with a minimum weight of 180 kg but has no championship status.

CIK-FIA Karting International Supercup[edit]

Year Champion Chassis / Engine / Tire Class
2013 France Dorian Boccolacci Energy Corse / TM / Bridgestone KZ2 Supercup
2014 Netherlands Ryan Van Der Burgt DR / Modena / Bridgestone KZ2 Supercup
2015 France Thomas Laurent Tony Kart / Vortex / LeCont KZ2 Supercup
2016 Spain Pedro Hiltbrand CRG / Maxter / Vega KZ2 Supercup
2017 Italy Alex Irlando Sodikart / TM / Bridgestone KZ2 Supercup
2018 Italy Matteo Viganò Tony Kart / Vortex / Bridgestone KZ2 Supercup
2019 France Emilien Denner Sodikart / TM / Bridgestone KZ2 Supercup
2020 Italy Simone Cunati Birel / TM / Vega KZ2 Supercup
2021 Italy Lorenzo Travisanutto Parolin / TM / MG KZ2 Supercup
2022 France Arthur Carbonnel CRG / TM / LeCont KZ2 Supercup

CIK-FIA European Championships[edit]

Year European Champion Chassis / Engine / Tire Class
2007 Netherlands Thomas Knopper PCR / TM / Dunlop KZ2
2008 France Tony Lavanant Energy Corse / TM / Bridgestone KZ2
2009 Italy Angelo Lombardo Tony Kart / Vortex / Bridgestone KZ2
2010 Italy Paolo De Conto Energy Corse / TM / Vega KZ2
2011 Italy Fabian Federer CRG / TM / Bridgestone KZ2
2012 Lithuania Simas Juodvirsis Energy Corse / TM / Vega KZ2
2013 Norway Emil Antonsen DR / TM / Bridgestone KZ2
2014 Italy Andrea Dalè CRG / Maxter / Bridgestone KZ2
2015 Sweden Joel Johansson Energy Corse / TM / LeCont KZ2
2016 Italy Fabian Federer CRG / TM / Bridgestone KZ2
2017 Germany Leon Köhler Tony Kart / Vortex / Vega KZ2
2018 France Adrien Renaudin Sodikart / TM / LeCont KZ2
2019 Sweden Emil Skärås Energy Corse / TM / Bridgestone KZ2
2020 Sweden Victor Gustavsson Birel / TM / Vega KZ2
2021 Italy Giacomo Pollini CRG / TM / MG KZ2
2022 France Tom Leuillet Birel / TM / LeCont KZ2


See also[edit]

  • KF1, the top level of karting
  • KF2, a KF1 feeder series
  • KF3, a KF2 and KF1 feeder series
  • KZ1, the fastest KZ karting racing category
  • Superkart, road racing with kart sized open-wheel cars


  1. ^ [1] – Article 12, Specific Regulations for KZ2 & KZ1, p. 374
  2. ^ "CIK-FIA European Championship | Driver Database".

External links[edit]