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Vortex Rok Shifter Engine Package

Vortex Rok Shifter Engine Package
Quantity in stock
3 item(s) available
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Quantity (3 available)


  • Single-cylinder 2 stroke engine with six-speed gearbox
  • Displacement 125 cc
  • Reed valve intake in the crankcase
  • Liquid-cooled through external pump
  • Push-to-start system
  • Mixture-lubricated
  • PVL analogic ignition
  • Dry clutch
  • Dell’Orto VHSH Ø 30mm carburettor
  • Arrow intake silencer
  • Dell’Orto fuel pump
  • Bore and stroke 54x54.5mm
  • Cast iron made cylinder
  • 5/3 transfer ducts intake
  • Oval exhaust and 2 boosters
  • 43HP at 13.900 Rpm
  • Max 14.000 Rpm
  • Shifter Rok moulded exhaust
  • Exhaust silencer
  • Front clutch gearbox system
  • Radial bearing C4
The Rok Shifter was born to meet the needs
of many drivers who want to compete in a category with the gearbox, but always according to the Rok philosophy: low costs and steady regulations over the time.

The engine has the following features:
Single-cylinder 2 stroke engine with 6-speed gearbox with front clutch system, displacement 125 cc, reed valve intake in the crankcase. Liquid-cooled through external pump (not supplied in the kit).
The engine comes in two configurations: bare engine or in a complete kit with Dell'Orto VHSH Ø 30mm carburettor, Dell'Orto fuel pump, Arrow intake silencer, moulded exhaust and exhaust silencer.
Ready for a power of 43 HP, the Rok Shifter is the engine that provides the best combination of performance and operating costs.
Includes complete exhaust, Dellorto carb, airbox, j-arm, drive gear and engine mount. Requires radiator, hoses, water pump, pulley and belts.
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