125cc Max Non Gearbox (160-190KPH)
80cc Gearbox ( top speed 160-190kph )
125cc Gearbox (top speed 170-200 kph)
250cc National (single,180-230kph)
250cc International (twin cylinder,240-265 kph)
the CIK only has the 250cc class, the 500cc class was a kart equipped with two 250cc engines but think that may have been dropped!
They are all quick. How fast is the kart you race?
Superkarts race on full size race tracks i race on sprint kart tracks! i use the Yamaha KT100SEC called the Clubman class, im in Clubman Light, the premier class in Australia, though Rotax Light will probably over take that soon.
Clubmans race to about 100Kph Rotax 115kph but the speed is relative, youre one inch off the ground its a different feeling to doing those speeds in a car! i can only imagine what its like to Race in a superkart, it would be insane!