A Brief History of the Italian Marque
The Grim auxiliary motor was built in displacements of 50, 55 and 60cc by Società Italiana Pompe SIHI with headquarters in Viale Monza in Milan. Advertised as being established in 1944, it is believed to have ended production in 1952.
It had as a characteristic the chain drive which may be applied to the center of the bicycle frame or to the left of the rear wheel.
Source: Moto di Lombardia
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