Vortex VTZ KZ / KZ2 Engine (CIK-FIA)

Description

Vortex VTZ — 125cc single-cylinder reed-valve two-stroke, liquid-cooled, six-speed gearbox. CIK-FIA homologated (012-EZ-01) for the KZ and KZ2 shifter classes. Heir of the RTZ (World Champion 2021, Vice World Champion 2022): 115 mm connecting rod, water-cooled crankcase (the RTZ was air-cooled), completely redesigned muffler, head with insert as standard.

Technical specifications

• 125cc
• Bore x stroke 54×54.4 mm
• Roller main bearings
• Nikasil-coated cylinder
• 5/3 transfers
• Crankcase reed-valve intake
• Special crankshaft
• Connecting rod 115 mm
• PVL ignition CIK-FIA homologated.

Supplied with

• CIK-FIA homologated exhaust
• Dell'Orto VHSH Ø30 mm carburettor
• Mikuni fuel pump
• Magnesium engine mount
• PVL ignition and coil
• Spark plug and cap