Sizaire Frères

France/ Belgium, 1923 – 1931

(1) Sté Nouvelle des Autos Sizaire, Courbevoie, Seine, 1923 – 1929

(2) Sté Belge des Automobiles Sizaire, 1929 – 1931

In 1923, there emerged from the Sizaire works in Courbevoie the world’s first production car to have all-independent suspension; the Sizaire Frères Type 4RI. The system of the Sizaire Frères car was basically similar to that of the old transverse-spring Sizaire-Naudin, considerably refined, and applied to all four wheels. As before, Maurice Sizaire was responsible for it, while his brother Georges looked after experimental work. The power unit of the Sizaire Frères car was a 11CV of 2 litres, with a single overhead camshaft, and developed 50bhp. The 4RI Sizaire Frères car was capable of almost 70mph. A 16-valve sports version of this advanced fast Sizaire Frères car was listed in 1926. The suspension system remained unchanged throughout the Sizaire Frères car’s career, though Lockheed brakes arrived in 1928, and various proprietary engines were used on the Sizaire Frères cars. These included, in the same year, an ohv Hotchkiss and a Willys-Knight sleeve-valve six. In 1929 production of Sizaire Frères cars ceased in France, but Georges Sizaire began small-scale manufacture in Belgium, where the Sizaire Frères car was known as the Belga Rise. This usually had Willys-Knight engines, but Hotchkiss or Minerva units could be ordered.

Source: Georgano, encyclopedia of motorcar; TRN

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