JUNIOR ROK
- Single-cylinder 2 stroke engine
- Displacement 125 cc
- Reed valve intake in the crankcase
- Liquid-cooled through integrated water pump
- Balance shaft
- Integrated electrical starter
- Centrifugal dry-clutch
- Mixture-lubricated
- Cast iron made cylinder CNC worked
- 3/3 transfer ducts intakeJ
- Oval exhaust and 2 boosters
- Radial bearing C4
- Bore and stroke 54x54mm
- 22HP at 11.500 Rpm
- Max torque 19.6 Nm at 10.000 Rpm
- Max 13.800 Rpm (electronically limited)
- PVL digital ignition
- Dell’Orto VHSH Ø 30mm carburettor
- Arrow intake silencer
- Dell’Orto fuel pump
- Rok moulded exhaust
- Exhaust silencer
Junior Rok, the restricted version of the Rok engine, has been developed for Junior Rok class purposely; thanks to its driving and cost-saving qualities, it is ideal for training young drivers. Over the years this engine has been the godfather of many young talents, who went then to the higher classes.
The engine has the following features:
Single-cylinder 2 stroke engine, displacement 125cc, reed valve intake in the crankcase. Liquid-cooled through integrated pump, equipped with centrifugal dry-clutch and integrated electrical starter. It is also equipped with a balance shaft that reduces vibrations.
The engine comes in a complete kit with Dell'Orto VHSH Ø 30mm carburettor, Dell’Orto fuel pump, Arrow intake silencer, moulded exhaust and exhaust with integrated exhaust silencer and wire loom.
Junior Rok offers incredible performance with unique management costs, making this category a perfect gym for many young drivers.
| ROK news 2025 |
| ROK Cup 2025: debutta il nuovo motore SVR nelle gare ROK Cup Italia, Winter Trophy e Festival |
