Twister KZ Shifter

Kart for kids 15 and over who race with 125 cc gear-box engines.
The chassis for gear-box classes .


The chassis for gear-box classes  

Engineered for the KZ category, the Twister KZ Standard is intended for drivers 15 and over. Developed according to international technical guidelines to obtain CIK-FIA homologation, the Twister KZ Standard features a rear hydraulic brake and front assembly with  ventilated discs, magnesium rims, gearshift lever carved from solid ergal, adjustable and removable flat front bar, and plastic body work developed for optimal aerodynamic penetration.

With a frame built entirely of 30 mm diameter tubing, the chassis lends itself to multiple adjustments and adapts optimally to the 125 cc gearbox engines used in the KZ class.

In addition, the calibration of the Twister KZ guarantees excellent traction, which is necessary to discharge the extremely high torque that characterizes 125 cc shifter engines. The optimization of traction is fruit of a long research process on tubing material.

The multiple set-up adjustment options make this kart ideal for inexperienced and expert drivers alike. The 32 mm front tube enhances performance when entering corners, while the brake system has been engineered for optimal interplay with the chassis to generate the maximum deceleration without compromising the overall kart behavior.

All of the technical solutions featured on the Twister KZ have been developed by the Top-Kart Research and Development Department and have been tested and improved based on the Racing Team’s experience in international competitions.

Kart for kids 15 and over who race with 125 cc gear-box engines.

  • Chassis CR MO Ø 30/32
  • Wheelbase 1050 mm
  • Axle Ø 50 mm, adjustable height, with 3 bearings
  • Spindles Ø 25, adjustable height
  • Steering system with adjustable Ackerman
  • Blue Alcantara steering wheel
  • Hydraulic front and rear breaks with self-ventilated floating discs
  • Single-piece magnesium rims – front 5″x125/130, rear 5″x180/210
  • Front fairing, nose panel, side pods, rear bumper
  • Adhesive decal kit


  • Seat
  • Tires
  • Engine plate

Note – the chassis is sold without engine, exhaust, and carburetor.