​​​​​​​JUNIOR CHAMPIONSHIP CLASSES

CADET ROK

Click here for important Mini 950 chassis information.   

  • Competitors aged 6 years and under 10 years. 
  • 900mm wheelbase Cadet chassis which is a smaller version of larger chassis
  • Vortex Kiwi Mini ROK engine to KartSport New Zealand specs. 
  • Restricted exhaust header
  • 11,000 rpm limiter 
  • Minimum weight of kart and driver 99kg
  • Pump petrol only
  • Motul Grand Prix 2T oil only
  • Front-wheel brakes not permitted
  • Original Vortex clutch compulsory
  • KartSport New Zealand contracted tyres only
  • The purpose of this class is to teach young people to drive karts of restricted performance in a competitive but controlled manner.
  • The Vortex Kiwi Mini ROK engine can be very easily converted from Cadet ROK spec to Vortex Mini ROK spec (and vice versa).

VORTEX MINI ROK

Click here for important Mini 950 chassis information.

CLICK HERE to view the MINI ROK owners manual. ​​​​​​​

  • Competitors aged in the calendar year of their 9th birthday and under 13 years.
  • Chassis to KartSport New Zealand specs
  • Vortex Kiwi Mini ROK engine to KartSport New Zealand specs.
  • Unrestricted exhaust header
  • 14,000 rpm limiter
  • Original Vortex clutch compulsory
  • Minimum weight of kart and driver 120kg
  • Pump petrol only
  • Motul Grand Prix 2T oil only
  • Front-wheel brakes not permitted
  • KartSport New Zealand contracted tyres only
  • The purpose of this class is a stepping stone between Cadets and Juniors.
  • The Vortex Kiwi Mini ROK engine can be very easily converted from Vortex Mini ROK spec to Cadet ROK spec (and vice versa).

125CC ROTAX MAX JUNIOR

  • Competitors aged in the calendar year of their 12th birthday and under 16 years.  
  • Chassis to KartSport New Zealand specs
  • Eligible engine is the Rotax FR125 Max Junior
  • Minimum weight of kart and driver 145kg
  • Original Rotax clutch only
  • Pump petrol only
  • KartSport New Zealand contracted tyres only
  • This is a spec touch and go (TAG) engine class for top competitors in New Zealand. Also run at rounds of the NZ Rotax Max Challenge Series.

VORTEX ROK DVS JUNIOR 

  • Competitors aged in the calendar year of their 12th birthday and under 16 years.  
  • Chassis to KartSport New Zealand specs
  • The eligible engine is the Vortex ROK DVS Junior
  • Minimum weight of kart and driver 140kg
  • Direct drive with a decompression valve for starting
  • Pump petrol only
  •  Motul Grand Prix 2T oil only
  • KartSport New Zealand contracted tyres only
  • This is a spec direct drive engine class for top competitors in New Zealand. Also run at rounds of the NZ ROK Cup Series.

Cadet ROK and Vortex Mini ROK Class 950 Chassis Compliance

The beginners KartSport class in New Zealand requires a homologated chassis to be competition compliant. Please ensure you are aware of the rules and recommendations before purchasing a new or used kart.

Mini 950 Chassis Compliance Statement