RKF Engine technical features Homologation no. CIK FIA 4/M/21
Single cylinder 2-stroke engine with reed valve induction in the crankcase
Displacement: 124,96cc
Mixture lubricated (with Petronas Rok Lube)
Liquid-cooled with integrated water pump
Digital ignition
Electric starter
Balancer shaft
Valve exhaust (KF2)
Monolith centrifugal dry clutch
Bore-stroke 54 X 54 mm
Number of transfer ducts: 5/5
Exhaust ports: 3
Maximum rpm: 15.000 Rpm (KF), 14.000 Rpm (KFJunior) electrically limited
Vortex RVZ (KZ1 and KZ2 categories), Homologation no. CIK FIA 5/M/21
RVZ is the new CIK FIA homologated Vortex engine for the gearbox categories. This engine is the result of the great work done by Vortex Technical department using all the best knowledge and technologies at its disposal.
RVZ Engine technical features, Homologation no. CIK FIA 5/M/21
Single cylinder 2-stroke engine with six-speed gearbox
Displacement: 124,84 cc
Nicasil cylinder
PVL Analog Ignition
Mixture lubricated (with Petronas Rok Lube)
External pump liquid-cooled system
Dell’Orto VHSH carburettor Ø30mm diameter
Intake reed valve in the crankcase
Number of transfer ducts: 5/3
Bore-stroke 54 x 54,45 mm
Front clutch gear shift
Dry clutch
Oval exhaust with 2 boosters
C4 radial-bearings
Ring with special coating
New-generation homologated exhaust
Machined conrod 115mm
New-generation Asso piston with special coating
OTK M&C 
