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Ducati Monster 1100 EVO Desmodue Evoluzione

The Evolution of the Desmodromic 2 valve Ducati Engine

The Monster 1100EVO is powered by the Desmodue Evoluzione engine which is the first two-valve Ducati to hit the 100 hp.

Mon Evo engineCompared with the previous 1100 cc Twin cylinder air-cooled L Desmodromic, this new engine gives an even greater adrenalin rush thanks to the superior power level at high revs while a more linear torque curve ensures a super-smoother power delivery. The 1100 cc Twin Desmodromic has been tuned in order to increase both volumetric and combustion efficiency. The inlet ports and the combustion chamber shape have been redesigned, while the new camshafts have an extreme profile to provide an increased valve lift. The pistons are new too and feature an high compression profile. To ensure high standards of reliability the head cooling system has been revised with improved lubrication to enhance the cooling performance.

Power & Torque Curves

The Monster 1100EVO delivers 100CV (73,5kW) @ 7500rpm and 10,5kgm (103Nm) @ 6000rpm Compared with the previous Monster 1100, the new engine data performance ensures a more exciting riding experience at high revs and a super-smoother power delivery thanks to a more linear torque curve.

APTC (Adler Power Torque) Clutch 

The Monster 1100EVO features a new APTC wet clutch which ensures quiet operation and long life. In addition, the progressive self-servo mechanism reduces the lever effort at the handlebar and makes the Monster even more practical in traffic. The Monster 1100EVO APTC wet clutch works with a race-like ‘slipper’ system which reduces the destabilizing effect of the rear-end under aggressive down-shifting, and compared with other wet clutch used so far by Ducati, features an additional cush-drive damper mechanism which smoothes the repeated transition from drive to over-run during stop-start traffic. 

Vacural Crankcases

1100 evo crankcasesThe two-valve engine on the Monster 1100EVO features a crankcase which significantly reduces overall engine weight. They are produced using the same innovative Vacural® technology that Ducati previously applied only to Supersport models.

This method of production relies on vacuum die-casting, which improves the quality of the casting by avoiding porosity, air pockets and oxidation. This enables greater dimensional accuracy and higher ductility for the aluminium alloy. Ducati designers have drawn upon the benefits of this innovative process, redefining the conformation and thickness of the sides on the new crankcase using finite element simulations (FEM) and tests, which resulted in achieving the required reliability standards as well as attaining a weight reduction of the crankcase.

Exhaust System

1100 evo exhaustThe Monster 1100EVO features a completely revised 2-1-2 routing exhaust system with two aggressive low level cannon-style, vertically stacked silencers placed on the right side, which give off in fullness the famous sound of the Twin-cylinder Ducati engine. The new exhaust system, equipped with tow Lambda probes and an electronically controlled valve, is a crucial component in achieving the excellent torque and engine power, and a fundamental style element used by the Ducati designers to emphasize the superior performance of the new Monster 1100EVO.