Info

Born to follow the CIK regulations of the new International Junior category, the DDJ owns different specifications from its predecessor. After a few seasons the clutch and the electric ignition disappeared to move on to a totally new project, a challenge Vortex faces with its usual enthusiasm, aware that these are the moments the genius and the manufacturing ability of the factory are highlighted.

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.

Cooling System
Liquid-cooled through external pump

Exhaust
Oval exhaust and 2 boosters

Bearings
Radial bearing C4

Bore and stroke
54×54,29 mm

Max Torque
14.000 Rpm limited

Accensione
Push-to-start system with decompression valve

Carburettor
N.

Silencer
N.

Exhaust
Optional Cik-Fia T18JR

Reed valve intake in the crankcase
Push-to-start system with decompression valve
Mixture-lubricated
Cast iron CNC made cylinder
5/5 transfer ducts intake
Piston ring L type
Balance shaft