GRI 1920 Motorcycle Engine

El motor y los esquemas de sus distintos componentes permiten comprender su funcionamiento.

The engine and schematics of its various components make it possible to understand its functioning.

"The poppet valve is operated through a rocker from a cam...

Courtesy Sergio Scalerandi of Argentina, who has contributed numerous articles on rare and interesting machines.

British Motorcycle Manufacturers
British Motorcycles