Ducati new generation two-valve L-twins

Ducati new generation aircooled L-twins

ducatilogo4Ducati updated the old generation air-cooled twins to power the 2003 Multistrada and Supersport.
Resulting in better performance and reliability esp. by improving the heat balance of the engine.

Restricted to the desmo-head the following has been “restyled”:

  • Complete new casting (cast by gravity resulting in a better crystal structure)
  • Larger valves 45 mm (intake) and 40 mm (exhaust) means improved breathing
  • Narrower valve angle (from 60 to 56 degrees) means improved valve seat and desmodromic timing part arrangement, which now operates with improved geometries
  • Decreased valve stem diameters (from 8 mm to 7 mm)
  • Reshaped combustion chamber
  • New designed valve seats made from beryllium bronze (less wear and better heat dissipation)
  • Twin spark/double ignition (considerably improves combustion)
  • New (hollow and lighter) camshafts turning in plain sliding friction bearings

BIKE September 2002 p. 26-27 (News section): “Ducati breathes life into air-cooled range”
The site of Ducati.com: section “Ducati Technical” : the article of Stefano Bianucci “The pompone legend continues with the new 1000 DS”
MO nr. 12 Dezember 2002 p. 14-23: Ducati Monster 1000S : neuer Zweizylinder von Joerg Lohse and Jo Soppa

22-01-2003 is the publication date of the European Patent application EP1277921.
Applicant is Ducati Motor Holding SPA (IT) and inventor is Gianluigi Mengoli. [See three of the 14 patent pics].

ducatif02 ducatif06 ducatif07 ducatif12 mengoli2 mengoli1 mengoli3

picture of the cylinder head on foot board

2023 Strada 2 v2Over Paradigma’s

[Classification = Group 6 A]