A Brief History of the Marque
Built by brothers Gasparoli & Ricciardelli, this was a vertical twin of around 350cc using two Della Ferrera split cylinder two-stroke engines, according to Henshaw. However, as the Della Ferrara looked like a twin, it is very likely that in fact it was a standard engine in the GRG.
The machine had rear suspension. Sources: MC Storico Conti, Henshaw et al
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