Valentino Rossi. Jorge Lorenzo. Dani Pedrosa. Marco Simoncelli. Casey Stoner. Five of the most dominant riders in MotoGP history. All of them learned to race a Grand Prix motorcycle on the same machine — the Aprilia RS125. A single-cylinder 125cc two-stroke from a small Italian factory near Venice. Aprilia won multiple world championships with it. But what it really produced was a generation of riders who arrived in the bigger classes already knowing how to win. The 125cc class closed in 2012. The riders it built are still racing for world titles. . . . #OneLungRacing #Aprilia #RS125 #125cc #TwoStroke #2Stroke #Rossi #Lorenzo #Pedrosa #Simoncelli #Stoner #GPRacing #GrandPrix #MotorcycleHistory #MotoHistory #ApriliaRacing #125ccGP #RacingLegends #WorldChampion #ItalianMotorcycles