PThe first Gillet-Herstal motorcycles were 300 cc 2-strokes.
Mr. Leon Gillet had a preference for 4-stroke engines and in 1920 he used V-Twin MAG 750 cm³ IOE engines.
In 1922 he released also a 1000cc model.
Also in 1922 he released a model 350 cc 2-stroke wit..