About the "Guzzi", also in this field this great motorcycle were at the state-of-the-art one: in fact, it was among the first ones to adopt the elastic suspension. Actually to then the frames were rigid and the rear suspension didn't exist, the suspension was submitted to of the big springs under the saddle; in the past people believed that an elastic suspension was even dangerous for the stability of the motorbike. However here some examples of rear suspension:

Classic "Guzzi" rear suspension layout

Only in 1928 the "Guzzi" produced the model "G.T." (the "Norge", for a famous "raid" demonstrative thin in Norway), shown in the following photo:

"Moto Guzzi G.T. Norge"

Photo frame  "G.T. Norge" (1928)

This model was not successful (only 78 motorcycles were produced) because the distrust of an elastic suspension. So this model was "unpopular". Obviously it is now a rare piece from collection, both the model and its peculiar suspension.

About the constructive principles, the package of the springs is positioned in the lowest possible point advantage of the centroid. It was connected to the big fork with some long rods. About the constructive principles, the package of the springs is positioned in the lowest possible point advantage of the centroid. It was connected to the big fork with some long rods. Only after the resounding victory at "Tourist Trophy" (1935) "Moto Guzzi class 250" with elastic frame that convinced the public opinion to believe in this new technology. Firstly this idea was aplied to military authorities ("Moto Guzzi" was the Italian Army official supply company); in-fact the first model was expressly realized for the Army. The "G.T. 17" already had the elastic frame as the "G.T. Norge". The following image of the "G.T. 17" original catalog with the components of the frame, of which we have realized the engine support (underlined in red) here shown inthe right lower part.

Motorbike elastic Guzzi GT16 - GT17 - GT2VT: Realization of a frame part. 
The piece realized by "Ingegneriadepoca" (the support for the engine) is in the right lower

part, as an "exploded" of a catalog of epoch.

Viene infine mostrata meglio la culla portamotore e molle da noi realizzata.

The support for the engine, realized from "Ingegneria d'epoca" (models GT16 - GT17 - GT2VT)