Classic motorcycle head-to-head

Ducati 900 SD Darmah vs Norton Commando 850

Ducati 900 SD Darmah scores 83/100 overall against Norton Commando 850 on 82/100. On the road: 70–68. As classics: 95–95. Overall result: Ducati 900 SD Darmah.

The numbers

Category-by-category result

CategoryDucati DarmahNorton CommandoAdvantage
road
PerformanceDirect comparison of power, acceleration and usable performance across the pre-1990 classic field.87Ducati Darmah
HandlingSteering, stability, weight and real-road manners.88Level
BrakingDirect comparison of real stopping ability without an age allowance.76Ducati Darmah
ReliabilityEngine, electrics and general dependability when properly maintained.65Ducati Darmah
Ease of ownershipMaintenance, parts supply and access to specialist knowledge.68Norton Commando
ComfortRiding position, vibration and suitability for longer journeys.77Level
classic
StylingDesign quality, visual presence and period appeal.1010Level
Historical importanceInfluence on motorcycling and importance within its era.99Level
Collector appealLong-term desirability among classic motorcycle enthusiasts.99Level
CharacterSound, feel, personality and memorable riding experience.1010Level

Choose the Ducati Darmah if…

you want charismatic bevel-drive Ducati performance with more comfort and practicality than the 900 Super Sport.

Choose the Norton Commando if…

you want a fast, handsome British twin with excellent road manners and the distinctive Isolastic riding experience.

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Background

History

Ducati Darmah

The Ducati 900 SD Darmah was produced from 1977–1982 and used a 864cc air-cooled bevel-drive V-twin. Within this comparison library it stands out particularly for styling, character, historic importance. It suits riders who value the qualities described in its original profile rather than choosing by specification alone.

Norton Commando

The Norton Commando 850 was produced from 1973–1977 and used a 828cc air-cooled parallel twin. Within this comparison library it stands out particularly for styling, character, historic importance. It suits riders who value the qualities described in its original profile rather than choosing by specification alone.

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Interesting details

Did you know?

Ducati Darmah

  • Its production span in this library runs from 1977 to 1982.
  • The recorded engine description is: 864cc air-cooled bevel-drive V-twin.
  • Its strongest comparison scores are styling, character, historic importance.

Norton Commando

  • Its production span in this library runs from 1973 to 1977.
  • The recorded engine description is: 828cc air-cooled parallel twin.
  • Its strongest comparison scores are styling, character, historic importance.
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Present-day appeal

Collector notes

Ducati Darmah

Collector interest is strongest where condition, originality and correct period details support the identity of the Ducati 900 SD Darmah. Its library score for styling is 10/10. Values and desirability can vary substantially between years, specifications and restoration quality, so individual examples should be assessed on their own evidence.

Norton Commando

Collector interest is strongest where condition, originality and correct period details support the identity of the Norton Commando 850. Its library score for styling is 10/10. Values and desirability can vary substantially between years, specifications and restoration quality, so individual examples should be assessed on their own evidence.

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Before you buy

Buying checks

Ducati Darmah

  • Confirm the frame and engine identity match the advertised model and year.
  • Check cold starting, smoke, oil leaks and unusual mechanical noise.
  • Check primary drive, charging system, engine mounts and evidence of non-standard modifications.
  • Inspect the frame, wheels, brakes and suspension for wear, damage or poor repairs.
  • Verify that important model-specific parts have not been replaced with incorrect later components.
  • Review the paperwork, ownership history and any restoration invoices before purchase.

Norton Commando

  • Confirm the frame and engine identity match the advertised model and year.
  • Check cold starting, smoke, oil leaks and unusual mechanical noise.
  • Check vibration-related fasteners, primary drive condition and signs of persistent oil leakage.
  • Inspect the frame, wheels, brakes and suspension for wear, damage or poor repairs.
  • Verify that important model-specific parts have not been replaced with incorrect later components.
  • Review the paperwork, ownership history and any restoration invoices before purchase.

Period opposition

Historic rivals

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Final result

The verdict

Ducati 900 SD Darmah wins the direct on-the-road comparison. As classic motorcycles they also finish level. Ducati 900 SD Darmah takes the overall result after the road and classic scores are weighted equally.

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