Ducati 450 Mark 3 Desmo (1973)

Ducati 450 Mark 3 Desmo (1973)

The Ducati 450 Mark 3 Desmo is a testament to Ing. Fablio Taglioni’s innovative genius, whose desmodromic system revolutionized engine design.

Its four-stroke, single-cylinder engine boasts a remarkable 436cc capacity, thanks in part to its short stroke and bevel gear-driven SOHC configuration.

As you twist the throttle, the Ducati 450 Mark 3 Desmo comes alive with its characteristic high-revving enthusiasm, effortlessly revving up to dizzying speeds without compromise. Its handling prowess is nothing short of exceptional, a testament to Franco Farne’s meticulous development work on the legendary Ducati singles.

Built in the aftermath of World War II and extensively re-equipped by the Italian government, Ducati’s 450 Mark 3 Desmo represents a triumphant culmination of their bevel gear engine expertise.

Key Specifications

Engine TypeFour stroke, single cylinder, SOHC, bevel gear driven
Engine Capacity435.7 cc / 26.6 cu in
Max Power18.4 kw / 25 hp
Fuel Tank Capacity13 L / 3.4 US gal / 2.9 Imp gal
Seat Height28.9 inches / 735 mm
Ducati 450 Mark 3 Desmo (1973)

All Specifications

Make & Model

ModelDucati 450 Mark 3 Desmo
Year1973

Engine

Engine TypeFour stroke, single cylinder, SOHC, bevel gear driven
Displacement435.7 cc / 26.6 cu in
Bore x Stroke86 x 75 mm
Compression Ratio9.3:1
Max Horsepower18.4 kw / 25 hp
Engine Management SystemDell’Orto VHB 29 AD
Cooling SystemAir cooled

Performance

Top Speedn/a

Transmission

ClutchWet, multiplate
Gearbox5 Speed
Primary Drive Ratio2.111:1 (27/57)
Gear Ratios1st 2.46 / 2nd 1.73 / 3rd 1.35 / 4th 1.10 / 5th 0.97:1
Final DriveChain

Electrical & Electronics System

BatterySAFA 3L3, 13.5 Ah
StarterKick

Chassis & Suspension

Front Suspension35 mm Marzocchi telescopic fork
Rear SuspensionSwingarm, dual Marzocchi shocks, 3-way adjustable

Wheels & Brakes

Front Tire Size2.75-18
Rear Tire Size3.00-18
Front Brakes180mm Drum
Rear Brakes150mm Drum

Dimension & Weights

Overall Length2000 mm / 78.7 in
Overall Width600 mm / 23.6 in
Overall Height940 mm / 37.0 in
Seat Height28.9 inches / 735 mm
Wheelbase53.5 inches / 1360 mm
Fuel Tank Capacity13 L / 3.4 US gal / 2.9 Imp gal
Dry Weight177 kg / 390 lbs

Features

  • Four stroke single cylinder engine
  • SOHC design
  • Bevel gear driven
  • Positive valve control via desmodromic system
  • Two camshafts for opening and closing valves
  • Extremely short stroke due to sustained high rpm capability
  • Accurate engineering required for bevel drive
  • Meticulous oil changes necessary for longevity
  • Reputations established by Ducati singles by 1969 launch
  • Handles beautifully thanks to Franco Farne’s development work
  • Finish was often grim, with shoddy paintwork and dire chrome
  • Electrics worse than Japanese opposition
  • Magnificent desmo engine dominating the chassis
Ducati 450 Mark 3 Desmo (1973)
Ducati 450 Mark 3 Desmo (1973)
Ducati 450 Mark 3 Desmo (1973)
Ducati 450 Mark 3 Desmo (1973)

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