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  • Vortex Rok Shifter Engine Kit

    Complete Shifter Engine Kit, Includes Motor Mount,

    Cooling system NOT Included (Radiator, Pump, Belts)

    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 as a complete kit with Dell'Orto VHSH √ò 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.