RAV is the new 125cc single-cylinder 2 stroke engine by Vortex, homologated by CIK-FIA for the classes KF1, KF2, KF3 and KF4, with reed valve admission in the crankcase. It is mixture lubricated 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, and with a power valve for the exhaust. The centrifugal dry clutch is monolithic.