After a failed attempt by the factory at the West German Grand-prix to modify the suspension, Roger took matters into his own hands.  Teaming up with Sylvain Geboers and Mr. Lucian Tilkens (inventor of the monoshock), they came up with their own version of the Maico type suspension.  Using a spare works frame and Rogers 370 international bike, This was the result. (notice the original top shock mounts still on the frame) Roger won the Belgian Grand-prix in its debut.