TECH FOCUS
KZ & KZ2 COMPARED The KZ class, the top expression of gearbox karting, and the KZ2, the shifter entry class, have the same vehicle and engine (40 Hp) requirements, but different shift system and tire mesh specifications. In addition, entry in the KZ is strictly merit-based.
GEARBOX:
DISPLACEMENT:
The gearbox has to be CIK-FIA homologated with 3 to 6 gears. In the KZ2 the gearbox control is handoperated and exclusively mechanical, while in the KZ it can be either handoperated or electro-mechanical.
For both classes, technical regulations mandate a displacement volume of 125 cc and a carburetor diameter of 30 mm maximum.
TIRES:
WEIGHT:
The KZ requires homologated prime type tires, while the KZ2 allows the option between homologated prime and option type. The prescribed make for both classes in 2014 is Bridgestone.
The maximum limit for both of the shifter classes (KZ and KZ2) is 175 kilograms, including the driver.
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