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125cc Gearbox

This class primarily uses Honda RS125 motors with some Yamaha and TM engines also being used.

These karts have compulsory dual circuit front and rear brakes and 6 speed gearboxes.

Full aerodynamic bodywork including rear wings are used to achieve speeds of up to 190 kph and on tighter circuits can almost match the larger capacity classes on lap times.

The 125cc gearbox class appeals to those that want the performance of a proper GP type engine, with the lower maintenance requirements of a single cylinder engine.

Costs of these karts vary from $5000 TO $12000 and the minimum class weight for kart and driver is 180kg.
 

125 Non Gearbox • 125cc gearbox • 250cc National • 250 International