KZ1 (karting)

KZ1 is a kart racing class using 125 cc water-cooled two-stroke engines yielding approximately 42 hp, equipped with a 6-speed gearbox. Technical regulations are similar to KZ2 except for the gearbox which can be either manual or electro-mechanical and the use of soft tires. Both engines and chassis must be approved by the CIK-FIA racing governing commission. It is open to top drivers aged 15 and over. Minimum weight is 175 kg with driver.

This class used to be called Formula C. It was discontinued in favor of Super ICC and renamed KZ1 by the CIK-FIA in January 2007.

There is a European KZ1 Championship and a World Cup, both organized under CIK-FIA.