1969 Ducati 450 Mark 3D Technical Analysis & Specification Breakdown
Built around Ducati's sport motorcycle platform, the 1969 Ducati 450 Mark 3D utilizes a 436 cc (26.6 cu in) air-cooled single cylinder, four-stroke layout. In factory specification, peak output is rated at 31 HP (22.6 kW) at 7,000 rpm, transferring power to the rear wheel through a 5-speed gearbox and chain final drive. With a specific output of 71.1 HP per liter, the engine character is indicating a tractable, stress-free state of tune focused on everyday usability and broad torque delivery.
On the scales, the 450 Mark 3D measures 135 kg (298 lbs) dry, translating to a power-to-weight ratio of 0.23 HP/kg (4.35 kg per horsepower). Rider ergonomics and chassis geometry center around a 735 mm (28.9 in) seat height — giving shorter riders and urban commuters confident flat-foot reach at traffic stops. The 12.9-liter (3.4 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 168 km/h (104 mph).
Within MotoLibrary's Ducati archive, this model family spans 2 indexed model years from 1968 to 1969, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Specific Output
71.1 HP/L
Power-to-Weight
0.23 HP/kg (4.35 kg/HP)
Standover Height
735 mm (28.9 in)
Engine
Displacement436.0 ccm (26.60 cubic inches)
Engine TypeSingle cylinder, four-stroke
Engine DetailsSingle cylinder, four-stroke
Power31.0 HP (22.6 kW)) @ 7000 RPM
Compression9.7:1
Valves/Cylinder2
Fuel SystemCarburettor
Fuel ControlDesmodromic valve control
LubricationWet sump forced lubrication with gear pump
CoolingAir
Transmission
Gearbox5-speed
Final DriveChain (final drive)
Performance
Top Speed168.0 km/h (104.4 mph)
Chassis
Frame TypeSimplex open cradle tubular steel
Front Travel120 mm (4.7 inches)
Rear Travel70 mm (2.8 inches)
Wheels & Brakes
Front Tyre2.75-18
Rear Tyre3.00-18
Front BrakesExpanding brake (drum brake)
Rear BrakesExpanding brake (drum brake)
Dimensions & Weight
Dry Weight135.0 kg (297.6 pounds)
Power/Weight0.2296 HP/kg
Seat Height735 mm (28.9 inches) If adjustable, lowest setting.
Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.
Power
Compare engine output with similar motorcycles if acceleration, highway use or two-up riding matters.
Seat Height
Check the seat height against your inseam and riding posture before choosing a motorcycle.
Weight
Compare weight carefully because it affects low-speed handling, parking and confidence.
Fuel Capacity
Fuel capacity helps estimate touring range and how often you may need to stop.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
