
Classic motorcycle head-to-head
Benelli 750 Sei vs Triumph Bonneville T120
Benelli 750 Sei scores 82/100 overall against Triumph Bonneville T120 on 82/100. On the road: 68–65. As classics: 95–98. Overall result: A draw.


Triumph Bonneville T120
The numbers
Category-by-category result
| Category | Benelli 750 Sei | Triumph Bonneville | Advantage |
|---|---|---|---|
| road | |||
| PerformanceDirect comparison of power, acceleration and usable performance across the pre-1990 classic field. | 8 | 6 | Benelli 750 Sei |
| HandlingSteering, stability, weight and real-road manners. | 7 | 8 | Triumph Bonneville |
| BrakingDirect comparison of real stopping ability without an age allowance. | 8 | 5 | Benelli 750 Sei |
| ReliabilityEngine, electrics and general dependability when properly maintained. | 6 | 6 | Level |
| Ease of ownershipMaintenance, parts supply and access to specialist knowledge. | 5 | 8 | Triumph Bonneville |
| ComfortRiding position, vibration and suitability for longer journeys. | 7 | 6 | Benelli 750 Sei |
| classic | |||
| StylingDesign quality, visual presence and period appeal. | 9 | 10 | Triumph Bonneville |
| 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 | 10 | Level |
Choose the Benelli 750 Sei if…
you want the world's first production six-cylinder motorcycle, with exotic styling, sound and rarity.
Choose the Triumph Bonneville if…
you value lightness, accessible mechanical simplicity and the sound and feel of a classic British twin.
Background
History
Benelli 750 Sei
The Benelli 750 Sei was produced from 1974–1978 and used a 747cc air-cooled inline six. 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.
Triumph Bonneville
The Triumph Bonneville T120 was produced from 1959–1973 and used a 649cc air-cooled parallel twin. Within this comparison library it stands out particularly for styling, historic importance, character. It suits riders who value the qualities described in its original profile rather than choosing by specification alone.
Interesting details
Did you know?
Benelli 750 Sei
- Its production span in this library runs from 1974 to 1978.
- The recorded engine description is: 747cc air-cooled inline six.
- Its strongest comparison scores are historic importance, character, styling.
Triumph Bonneville
- Its production span in this library runs from 1959 to 1973.
- The recorded engine description is: 649cc air-cooled parallel twin.
- Its strongest comparison scores are styling, historic importance, character.
Present-day appeal
Collector notes
Benelli 750 Sei
Collector interest is strongest where condition, originality and correct period details support the identity of the Benelli 750 Sei. 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.
Triumph Bonneville
Collector interest is strongest where condition, originality and correct period details support the identity of the Triumph Bonneville T120. 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.
Before you buy
Buying checks
Benelli 750 Sei
- 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.
Triumph Bonneville
- 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
Rivals to the Benelli 750 Sei
Rivals to the Triumph Bonneville
Final result
The verdict
Benelli 750 Sei wins the direct on-the-road comparison. Triumph Bonneville T120 wins the classic-motorcycle comparison. Their evenly weighted overall scores are tied, so the better choice depends on whether the rider values road ability or classic appeal most.