Aprilia RX 50 is little entry level motorcycles from Aprilia Italy. The Aprilia RX come with 50 cc of engine displacement (49,9cc), Liquid cooled system, single cylinder, 2 stroke with light alloy cylinder, this bike also comes with 6 speed transmission, well Aprilia RX 50 is good for mini 50 cc motorcycles. If you know more about Aprilia 50 cc class, you will knowing about Aprilia RS series,