Engines and Categories

KID ROK

Single-cylinder 2 stroke engine
Displacement 55 cc
Piston Port
Air-cooled system
Integrated electrical starter
Centrifugal dry-clutch
Mixture-lubricated
Cast iron made cylinder CNC worked
2 transfer ducts intake
Rectangular exhaust without rib
Piston ring L type
Radial bearing C4
Bore and stroke 42x39.7mm
4.5 HP at 10.000 Rpm
Max Torque 4 Nm at 8.000 Rpm
Max 13.000 Rpm
Selettra analogic ignition
Dell’Orto PHBN Ø 14mm carburettor
Vortex intake silencer
Dell’Orto fuel pump
Kid Rok exhaust with integrated exhaust silencer
Engine is suitable for the 6 - 10 year old category and fitted to a 900mm or 950mm chassis.

The Kid Rok was born to satisfy the large audience of young drivers champing at the bit for their desire to become a Rokker.

The engine has the following features:
Single-cylinder 2 stroke engine, displacement 50cc, piston port. Air-cooled, equipped with centrifugal dry-clutch and integrated electrical starter.

The engine comes in a complete kit with Dell’Orto PHBN Ø 14mm carburettor, Dell’Orto fuel pump, Vortex intake silencer and exhaust with integrated exhaust silencer, wire loom complete with battery and battery support.

KID ROK : small-size engine, low handling costs, great fun.

MINI ROK

Displacement 60 cc
Piston Port
Air-cooled system
Integrated electrical starter
Centrifugal dry-clutch
Mixture-lubricated
Cast iron made cylinder CNC worked
2 transfer ducts intake
Oval exhaust without rib
Piston ring L type
Radial bearing C4
Bore and stroke 42x43mm
10 HP at 11.000 Rpm
Max torque 6.5 Nm at 9.000 Rpm
Max 15.500 Rpm
Selettra analogic ignition
Dell’Orto PHBG Ø 18mm carburettor
Vortex intake silencer
Dell’Orto Fuel pump
Mini Rok exhaust with integrated exhaust silencer
Engine is suitable for the 8 - 13 year old category and fitted to a 950mm chassis

Mini Rok is dedicated to the very young drivers and has been shown to grow small karting talents. Thanks to some of its key features it is safe and easy to use, so that young drivers can become familiar with the kart without tension.The engine has the following features:

Single-cylinder 2 stroke engine, displacement 60cc, piston port. Air-cooled, equipped with centrifugal dry-clutch and integrated electrical starter.The engine comes in a complete kit with Dell’Orto PHBG Ø 18mm carburettor, Dell’Orto fuel pump, Vortex intake silencer and exhaust with integrated exhaust silencer, starter complete with battery and battery support.Mini Rok engine is aimed at the younger generation and for more than a decade has spread worldwide, therefore more and more federations have chosen it as national entry level category.

OKJ 

DDJSingle-cylinder 2 stroke engine
Displacement 125 cc
Reed valve intake in the crankcase
Liquid-cooled through external pump
Balance shaft
Push-to-start system with decompression valve
Mixture-lubricated
Cast iron made cylinder CNC worked
5/5 transfer ducts intake
Piston ring L type
Radial bearing C4
Bore and stroke 54×54,29 mm
14.000 Rpm Selettra analogic ignition
IBEA Rok DVS Ø 24mm carburettor
Engine is suitable for the 12 to 14 year old category and fitted to a 1050 mm chassis.

The DDJ engine as well as its KFJ predecessors, keeps unchanged the 125 cc displacement but goes back to the direct drive. The engine, as per regulation, mounts the rev limiter at 14,000 RPM and the 20mm carburettor.

The track did not disappoint expectations and on the occasion of the international competitions reserved to the new OKJ class, the DDJ Vortex immediately showed off his qualities, becoming the absolute protagonist of the category. Reliability, performance and easiness of use, make the DDJ the best engine for the CIK Academy category.

ROK DVS

Single-cylinder 2 stroke engine
Displacement 125 cc
Reed valve intake in the crankcase
Liquid-cooled through external pump
Balance shaft
Push-to-start system with decompression valve
Mixture-lubricated
One-piece exhaust power valve
Cast iron made cylinder CNC worked
5/3 transfer ducts intake
Oval exhaust and 2 boosters
Piston ring L type
Radial bearing C4
Bore and stroke 54x54mm
38 HP at 11.000 Rpm
Max Torque 21 Nm at 11.000 Rpm
Max 16.000 Rpm
Selettra analogic ignition
IBEA Rok DVS Ø 24mm carburettor
Arrow intake silencer
Rok DVS exhaust with integrated silencer
Engine is suitable for the 15 year old + category and fitted to a 1050 mm chassis.

Rok DVS engine offers great and unique driving sensations, making the fun and challenge experience greater and higher.
Only a big manufacturer, with many years of successful experience, as Vortex, is able to realize a similar project.

The engine has the following features:
Single-cylinder 2 stroke engine, displacement 125cc, reed valve intake in the crankcase. Liquid-cooled through external pump (not supplied in the kit). It is also equipped with a balance shaft that reduces vibrations and power valve that improves performance and driveability.

The engine comes in a complete kit with IBEA branded ROK DVS Ø 24mm carburettor, Arrow intake silencer, exhaust with integrated exhaust silencer.

Rok DVS engine does not require special efforts to start, thanks to the decompression push-to-start valve on the head. This system, combined with other technical solutions, keeps the Rok DVS faithful to the philosophy that has made the success of the Rok Cup: high performance, ease of management and ease of use.