The "desmodromic" valve system, a technology that once made engines on the track superior, has been an indispensable part of Ducati for the last 50 years.
In 1896 Gustav Mees developed a system called the "desmodromic valve engine" in a period of time far from modern motor technology and understanding. This system was favored by many companies in track races in the following years. The engine sounded like a sewing machine, but today it is still used in Ducati engines.
The desmodromic valve engines used in the Grand Prix races from 1914 to the 50s took place in Mercedes' Formula 1 vehicles in 1954 and 1955. With these tools, the most functional engines of the system in question were developed. The main rise of the desmodromic valves came in 1956 when Ducati claimed ownership.
The Ducati 1 "25 Grand Prix motorcycle, developed by the Ducati engineer named Fabio Taglioni, was so successful that a signature model of the Ducati 125 Desmo was developed as well. The company realized the potential of this system. Since 1968, all AR-GE activities have focused on desmodromic motors, and numerous patents have been granted.
Spring valves in the conventional system frequently failed due to the spring problem. Valve was a very serious problem especially for high-speed motors.
In desmodromic engines, the speed of the motor rotation is not dependent on the opening and closing of the springs. As the physical problems do not arise because there is no spring, the rotation speed of the piston-like structures called desmo directly affects the motor.
Ducati has been the sole practitioner of this engine system for the past 50 years. At the same time, it offers long-lasting trouble-free use with refined versions of today's Ducati motorcycles.