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European Motorcycles
Desmo Systems 1955

Desmo Systems

Probably the most famous proponent of the desmo valve train is Fabio Taglionii whose Ducati Desmo singles and twins are known the world over.

However, the concept has been around for well over a hundred years. It is discussed at some length here: The Arnott Desmodromic JAP

Desmodromic

Desmodromic valve arrangement

1 Opening (or upper) rocker
2 Upper rocker adjuster
3 Half-rings
4 Closing rocker adjuster
5 Closing (or lower) rocker
6 Valve
7 Closing rocker return spring
8 Camshaft

Desmo systems
Henk Cloosterman of Desmodromology has devoted a great deal of time and effort to documenting desmodromic systems.
Among them:
Azzarati built desmo engines for Benelli in the 1930s.
BMW aircooled twins by Franz Pohn
BMW R1 Project 1989-1992
Brüdersdorf, Roland, desmo engines, Sweden.
Capriolo of 1954 using a Küchen desmo system from the 1920s
Demm 1957 DOHC 49cc desmo
Ducati (many pages)
ESO 250 GP 1962
Horak, Karel. 250cc bevel-drive desmo 1969
Howarth two-stroke triple with desmo inlet valves.
JAP 1924 Desmo
Kürchen
Otto Lantenhammer built a desmo engine. He is also mentioned under GM.
Lito
Mangoletsi, G.A. 1930
Morini 250GP 1962
Moto Guzzi, Hans Peter Länge
MTRM by Carlo Mazzucato
MV Agusta 1959 DOHC 125cc
Neander, Kürchen desmo
NP by Nerio Pancaldi
Norton Manx 1957
Norton 350 1. Harry Hinton (AU). 2. Bryan Thomas.
Norton, James Lansdowne. Patent 209,882 Nov 15 1922.
NSU Ultramax, Willi Hartung
Orionette OHV two-stroke.
Rudge DDS by David Downer
Treen 350 desmo
Velocette desmo conversion kit by BMG. Dennis Quinlan has information on this.
Velocette 1964 by Tony Foale of FF fame.



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