Experiment 96.

Drawings of Experiment 96, from 1957 which feature an variable pulley system and variator for an automatic gear box. The final drive was of chain type. The rear sprocket was almost the circumferance of the rear wheel rim giving a higher gear ratio.
Very similar style of frame to that of the Lambretta models E & F but with a rather unusual set up of the front suspension.

Image Copyright to Vittorio Tessera, Casa Lambretta, Museo Scooter e Lambretta Milano.