SENIOR CHAMPIONSHIP CLASSES

100cc Yamaha Light

• Drivers aged 15 years and over 
• Chassis to KartSport New Zealand specs 
• Yamaha KT100 piston port 100cc 2 stroke engine to KartSport New Zealand specs 
• Full size muffler 
• Limited slip clutch optional 
• Minimum weight of kart and driver 144kg 
• Pump petrol only 
• Front wheel brakes not permitted 
• KartSport New Zealand Tendered tyres only
• This is a Senior class for all lighter weight national competition in NZ. 

100cc Yamaha Heavy

• Drivers aged 15 years and over 
• Chassis to KartSport New Zealand specs 
• Yamaha KT100 piston port 100cc 2 stroke engine to KartSport New Zealand specs 
• Full size muffler 
• Limited slip clutch optional 
• Minimum weight of kart and driver 165kg 
• Pump petrol only 
• Front wheel brakes not permitted 
• KartSport New Zealand Tendered tyres only
• This is a Senior class for all heavier weight national competition in NZ. 

KF2

• Drivers aged 15 years and over 
• Chassis to KartSport New Zealand specs 
• Eligible engine is the KF2 variant of a KF4 engine as homologated by the CIK 
• Minimum weight of kart and driver 158kg 
• Minimum dry weight (without fuel) of kart 75kg 
• CIK homologated clutch compulsory 
• Pump petrol only 
• KartSport New Zealand Tendered tyres only 
• This is the Senior CIK International class for top competitors in New Zealand.

KZ2

• Drivers aged 15 years and over 
• Chassis to KartSport New Zealand specs or CIK homologated 
• 125cc reed valve engine as homologated by the CIK for the KZ2 class with the homologated gearbox ratios, homologated exhaust and a CIK homologated inlet silencer for the respective engine. 
• Minimum weight of kart and driver 175kg 
• Side pods, nose cone and front console bodywork compulsory 
• Pump petrol only 
• CIK homologated tyres as per the KartSport New Zealand tyre list 
• This is the Senior International class for special events in New Zealand. 

125cc Rotax Max Light

• Drivers aged 15 years and over 
• Chassis to KartSport New Zealand specs 
• Bombardier Rotax FR125 MAX engine to KartSport New Zealand specs 
• Minimum weight of kart and driver 165kg 
• Front wheel brakes not permitted 
• Nose cones and side pods compulsory 
• Pump petrol only 
• KartSport New Zealand Tendered tyres only
• This is a 125cc non gearbox 'keystart' class for racing in NZ. 

125cc Rotax Max Heavy

• Drivers aged 15 years and over 
• Chassis to KartSport New Zealand specs 
• Bombardier Rotax FR125 MAX engine to KartSport New Zealand specs 
• Minimum weight of kart and driver 185kg 
• Front wheel brakes not permitted 
• Nose cones and side pods compulsory 
• Pump petrol only 
• KartSport New Zealand Tendered tyres only
• This is a 125cc non gearbox 'keystart' class for heavier competitors racing in NZ. 

Open

• Drivers aged 15 years and over 
• Chassis to KartSport New Zealand specs 
• Engine or engines with a maximum combined capacity of 250cc 
• Pump petrol only 
• Tyres open 
• Minimum weight of kart and driver as per the following :-

NON GEARBOX :
100cc rotary or reed - 130kg
Over 100cc and up to 150cc - 140kg
Over 150cc and up to 250cc - 160kg
Up to 250cc 4 Stroke Wankel Rotary Engine - 160kg
GEARBOX :
125cc National - 170kg
Up to 125cc non-motorcycle engines - 170kg
Over 125cc and up to 250cc - 170kg

This class is designed for all types of engines and is controlled by the above weight restrictions.