ENGINE DISPLACEMENT 60CC FREE AIR COOLING INTAKE PISTON PORT 2 TRANSFERS INLET EXHAUST WITHOUT RIB COATED PISTON PISTON RING AC SILVER PLATED CAGE D.18 MM RADIAL BEARINGC4 ANALOGIC IGNITION SELETTRA CENTRIFUGAL DRY CLUTCH ELECTRIC STARTER ON BOARD

MINI ROK The MINIROK 60 is the engine with which Vortex enters the world of the younger. Built according to the new CSAI FIK technical rules of the Italian MINI 60 and BABY 60 categories, the Minirok is a completely innovative engine for the younger! Vortex has developed two Minirok engines: MINIROK MINI 60 and MINIROK BABY 60: the two versions differ from one another incarburettor and exhaust. MINIROK BABY 60: supplied with carburettor Ø 14mm and baby exhaust (reduced power); dedicated to the youngest; it is the entry level in the karting world. MINIROK MINI 60: supplied with carburettor Ø 18mm and mini exhaust; it is the second step in competitions, usually from 9 to 12 years old drivers. Technical characteristics: It is a piston port engine cooled air free typical of the karting school, where the body and the finning have been dimensioned in order to obtain the greatest thermic and dimensional stability, paying particular attention to the most stressed part near the exhaust. The constructive architecture of the engine is that of a high performance engine: the gravity chill castings, the cast iron liner with a great thickness, the head with the radial fins, the crankcase with wide air passages for the cooling are only some of the characteristics that have been moved into this project. Also the cycle of the mechanical manufacturing is exactly that, which helps the engines of superior categories to reach the performing levels that we can see nowadays. The centrifugal clutch with monolithic rotor and the electric starter on board complete the configuration of an engine expressly born for the competitions and, at the same time, reliable and easy to drive. It’s important to underline that thanks to this manufacturing method, all the engines have the same performances and this keeps the qualitative standard high and constant

BORE 54MM STROKE 54MM DISPLACEMENT 123.95 CM3 CAPACITY 22KW A 11500 RPM MAX TORQUE 19.6 NM A 10000 RPM MAX RPM 13800 RPM (ELECTRONICALLY REV. LIMITED) CARBURETOR DELL'ORTO D.30 OR WITH DIAPHRAGM FUEL PUMP DELL'ORTO EXHAUST SYSTEM EXHAUST WITH INTAKE SILENCER DRIVE CENTRIFUGAL DRY CLUTCH

ROK JUNIOR ROK is a 125cc single-cylinder 2 stroke engine by Vortex, with reed valve admission in the crankcase. It is mixturelubricated and liquid-cooled with integrated water pump. It has got a digital ignition and an integrated electric starter, which the battery is dedicated to. It is provided with a balancer shaft, which reduces the vibrations. A centrifugal dry clutch makes it possible to keep the engine on even when the kart is still.

 

BORE 54MM STROKE 54MM DISPLACEMENT 123.95 CM3 CAPACITY 22KW A 11500 RPM MAX TORQUE 19.6 NM A 10000 RPM MAX RPM 13800 RPM (ELECTRONICALLY REV. LIMITED) CARBURETOR DELL'ORTO D.30 OR WITH DIAPHRAGM FUEL PUMP DELL'ORTO EXHAUST SYSTEM EXHAUST WITH INTAKE SILENCER DRIVE CENTRIFUGAL DRY CLUTCH

ROK ROK is a 125cc single-cylinder 2 stroke engine by Vortex, with reed valve admission in the crankcase. It is mixturelubricated and liquid-cooled with integrated water pump. It has got a digital ignition and an integrated electric starter, which the battery is dedicated to. It is provided with a balancer shaft, which reduces the vibrations. A centrifugal dry clutch makes it possible to keep the engine on even when the kart is still.

 

STROKE 54MM DISPLACEMENT 123.99 CM3 CAPACITY 26.5 KW A 12500 RPM MAX. TORQUE 20.2 NM A 11500 RPM MAX. RPM 16700 RPM CARBURETOR DELL'ORTO D.36 FUEL PUMP DELL'ORTO INTAKE SILENCER ARROW EXHAUST SYSTEM EXHAUST WITH INTEGRATED SILENCER DRIVE CENTRIFUGAL DRY CLUTCH ENGINE OIL HIGH QUALITY OIL FOR 2 STROKE ENGINE MIXED AT 6% WEIGHT OF ENGINE –˜15 KG

SUPER ROK SUPEROK is the ultimate evolution of the ROK engine by Vortex, conserving many of its important characteristics, but featuring an amount of innovations. Not changing the displacement of 125cc and the reed admission in the crankcase, the reed block is now bigger, and the carburettor is a d.36mm by Dell’Orto. The new cylinder, always with liner, has got a 5-transfers scavenging, and the 3-ports exhaust is provided with pneumatic power valve. The digital ignition has a different advance diagram; the exhaust plant is a new design with integrated silencer; the rotor of the centrifugal clutch is now monolithic.