Ariel Square Four
77/100 Overall
58 On the road95 As a classic
Classic motorcycle head-to-head
Ariel Square Four vs Ducati 500 SL Pantah
Ariel Square Four scores 77/100 overall against Ducati 500 SL Pantah on 83/100. On the road: 58–72. As classics: 95–93. Overall result: Ducati 500 SL Pantah.
Photo: elenchos from Seattle, USA · CC BY 2.0
Ducati 500 SL Pantah
83/100 Overall
72 On the road93 As a classic
The numbers
Category-by-category result
| Category | Ariel Square Four | Ducati Pantah | Advantage |
|---|---|---|---|
| road | |||
| PerformanceDirect comparison of power, acceleration and usable performance across the pre-1990 classic field. | 7 | 7 | Level |
| HandlingSteering, stability, weight and real-road manners. | 6 | 9 | Ducati Pantah |
| BrakingDirect comparison of real stopping ability without an age allowance. | 4 | 7 | Ducati Pantah |
| ReliabilityEngine, electrics and general dependability when properly maintained. | 5 | 7 | Ducati Pantah |
| Ease of ownershipMaintenance, parts supply and access to specialist knowledge. | 5 | 7 | Ducati Pantah |
| ComfortRiding position, vibration and suitability for longer journeys. | 8 | 6 | Ariel Square Four |
| classic | |||
| StylingDesign quality, visual presence and period appeal. | 9 | 9 | Level |
| Historical importanceInfluence on motorcycling and importance within its era. | 10 | 10 | Level |
| Collector appealLong-term desirability among classic motorcycle enthusiasts. | 9 | 9 | Level |
| CharacterSound, feel, personality and memorable riding experience. | 10 | 9 | Ariel Square Four |
Choose the Ariel Square Four if…
you want unique engineering, refined four-cylinder character and one of Britain's most distinctive luxury motorcycles.
Choose the Ducati Pantah if…
you want the historically important Ducati that introduced the belt-drive desmodromic V-twin architecture used for decades.
Background
History
Ariel Square Four
The Ariel Square Four was produced from 1931–1959 and used a air-cooled square-four engine. Within this comparison library it stands out particularly for historic importance, character, styling. It suits riders who value the qualities described in its original profile rather than choosing by specification alone.
Ducati Pantah
The Ducati 500 SL Pantah was produced from 1979–1983 and used a 499cc air-cooled belt-drive V-twin. Within this comparison library it stands out particularly for historic importance, styling, handling. It suits riders who value the qualities described in its original profile rather than choosing by specification alone.
Interesting details
Did you know?
Ariel Square Four
- Its production span in this library runs from 1931 to 1959.
- The recorded engine description is: air-cooled square-four engine.
- Its strongest comparison scores are historic importance, character, styling.
Ducati Pantah
- Its production span in this library runs from 1979 to 1983.
- The recorded engine description is: 499cc air-cooled belt-drive V-twin.
- Its strongest comparison scores are historic importance, styling, handling.
Present-day appeal
Collector notes
Ariel Square Four
Collector interest is strongest where condition, originality and correct period details support the identity of the Ariel Square Four. Its library score for historic importance 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.
Ducati Pantah
Collector interest is strongest where condition, originality and correct period details support the identity of the Ducati 500 SL Pantah. Its library score for historic importance 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.
Before you buy
Buying checks
Ariel Square Four
- Confirm the frame and engine identity match the advertised model and year.
- Check cold starting, smoke, oil leaks and unusual mechanical noise.
- 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.
Ducati Pantah
- 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.
Period opposition
Historic rivals
Rivals to the Ariel Square Four
Rivals to the Ducati Pantah
Final result
The verdict
Ducati 500 SL Pantah wins the direct on-the-road comparison. Ariel Square Four wins the classic-motorcycle comparison. Ducati 500 SL Pantah takes the overall result after the road and classic scores are weighted equally.