Senior Drivers. Vortex Rok DVS J engine to New Zealand spec, 15,000 rev limiter

Drivers aged in the calendar year of their 12th birthday and under 16 years. Vortex Rok DVS J engine to new Zealand spec. 14,000 rev limiter.

Drivers aged in the calendar year of their 9th birthday and under 13 years. 60cc Vortex Mini Rok engine to New Zealand specs. 14,000 rev limiter.