Description VORTEX ROK SHIFTER DISPLACEMENT 125 CC MAXIMUM POWER 43 HP AT 13,900 RPM MAXIMUM SPEED 14,000 RPM Rok Shifter was created to meet the needs of numerous drivers who wish to compete in a category equipped with gearboxes, but always according to the Rok philosophy: low costs and stable regulations over time. The engine has the following characteristics: single-cylinder two-stroke engine with 6-speed gearbox with front engagement, 125 cc displacement, 4-petal lamellar entry in the crankcase. Liquid cooled with external water pump (not supplied in the kit). The engine is supplied in a complete kit with Dell’Orto VHSH Ø 30 mm carburettor, Dell’Orto vacuum fuel pump, Arrow intake silencer, molded muffler and muffler silencer. Capable of a power of 43 HP, the Rok Shifter is the engine that offers the best combination of performance and running costs. COOLING DOWN: Liquid cooling CYLINDER: Oval exhaust and 2 boosters BEARINGS: Radial main bearings C4 BORE AND STROKE: 54×54.5 mm MAXIMUM POWER: 43 HP at 13,900 Rpm MAXIMUM SPEED: 14,000 Rpm POWER ON: Analog PVL CARBURETOR: Dell’Orto VHSH Ø 30mm tub SILENCER: Arrow intake silencer FUEL PUMP: Dell’Orto MUFFLER: Shifter Rok molded muffler 6-speed gearbox with front engagement Dry clutch Mixture lubrication Cylinder with CNC machined cast iron barrel Number of transfers 5/3 ROK aluminum silencer Magnesium motor plate
