Draft:OK-N

OK-N

Category	Kart racing
Region	International
Affiliations	CIK-FIA
Inaugural season	2023 (2023)
Drivers' champion	Kyuho Lee (World, 2024)
Teams' champion	LN Kart-IAME (World, 2024)
Official website	Official website

OK-N is a kart racing class for drivers aged x and over, sanctioned by the CIK-FIA. OK-N is the secondary direct-drive class in FIA championships.

Specification

There are eight main technical features of the OK regulations:

• 125 cc direct-coupled, water-cooled two-stroke, mixed-lubrication engine.

• Valve inlet in the piston skirt.

• Screw carburettor with a maximum diameter of 24 mm.

• Maximum speed (limiter) of 16,000 rpm.

• Power valve at the exhaust.

• Single rear brake with hydraulic control.

• Premium tyres, medium gum compound.

• Minimum weight 150 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

By year

Key

*	Driver has competed in Formula One
†	Formula One World Drivers' Champion
‡	FIA World Champion in an auto racing discipline

Year	World Championship				European Championship				Year
	World Champion	Chassis	Engine	Tyres	European Champion	Chassis	Engine	Tyres
2024	Ethan Jeff-Hall	CRG	IAME	M	Joe Turney	Kart Republic	IAME	M	2024
Year	World Champion	Chassis	Engine	Tyres	European Champion	Chassis	Engine	Tyres	Year
	World Championship				European Championship
Source:

By driver

table

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

External links

• FIA Karting