• Vortex ROK Shifter 125cc Complete Engine official Vortex manufacturer image
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Vortex

Vortex ROK Shifter 125cc Complete Engine

Vortex ROK Shifter 125cc Complete Engine

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VOR-ROK-SHIFTER-DRAFT

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.

Specifications

Displacement 125 CC
Engine 2 stroke
Cooling System Liquid-cooled through external pump
Exhaust Shifter Rok moulded exhaust
Bearings Radial bearing C4
Bore and stroke 54x54.5 mm
Max Power 43 HP a 13.900 Rpm
Coppia massima 21 Nm a 11.000 Rpm
Max Torque 14.000 Rpm
Ignition PVL analogical ignition
Carburettor Dell'Orto VHSH Ø 30mm
Silencer Arrow intake silencer
Fuel Pump Dell'Orto

Features

  • Front clutch six-speed gearbox system
  • Dry clutch
  • Mixture-lubricated
  • Cast iron made cylinder CNC worked
  • 5/3 transfer ducts intake
  • Exhaust silencer ROK in aluminium
  • Magnesium engine mount

Manufacturer data: vortex-engines.com · Documents: 4_Rok Shifter_2026_rev03.pdf · retrieved 2026-09-05

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Especificaciones

Especificación Valor
SKU VOR-ROK-SHIFTER-DRAFT
Marca Vortex

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