1973 Ducati 450 Mark 3

Specifications
- Category
- Unspecified category
- Displacement
- 435.0 ccm (26.54 cubic inches)
- Displacement (cc)
- 435.00
- Engine details
- Single cylinder, four-stroke
- Power
- 27.0 HP (19.7 kW)) @ 7000 RPM
- Top speed
- 145.0 km/h (90.1 mph)
- Compression
- 9.3:1
- Bore × stroke
- 86.0 x 75.0 mm (3.4 x 3.0 inches)
- Valves/cyl
- 2.0
- Fuel control
- Overhead Cams (OHC)
- Cooling
- Air
- Gearbox
- 5-speed
- Transmission
- Chain (final drive)
- Front tyre
- 3.50-18
- Rear tyre
- 4.00-18
- Front brakes
- Expanding brake
- Rear brakes
- Expanding brake
- Wet weight
- 139.0 kg (306.4 pounds)
- Fuel capacity
- 13.00 litres (3.43 US gallons)
The 1973 Ducati 450 Mark 3
The 1973 Ducati 450 Mark 3 represented Ducati's entry-level offering in their road bike lineup, positioned as an accessible way into the Italian brand's distinctive single-cylinder experience. This lightweight middleweight delivered genuine sporting character through its 435cc thumper engine, producing enough grunt for spirited country road rides while remaining manageable for newer riders stepping up from smaller displacement machines. At just 306 pounds wet, the Mark 3 rewarded riders who appreciated nimble handling over raw power, with its 90 mph top speed proving adequate for everything except sustained highway touring.
The 1973 model carried over without significant mechanical changes from the prior year — buyers comparing it to a 1972 example should focus on mileage, service history, and condition rather than spec differences. The Mark 3 attracted riders seeking European character without the complexity or cost of Ducati's larger twins, plus collectors drawn to its role as an affordable entry point into vintage Ducati ownership. Today's buyers typically fall into two camps: vintage enthusiasts wanting authentic Italian engineering from this era, and collectors building comprehensive Ducati portfolios who recognize the 1973 Ducati 450 Mark 3 as representing honest, straightforward motorcycling from Bologna's golden period.
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