Honda CB550 Four
85/100 Overall
82 On the road88 As a classic
Classic motorcycle head-to-head
Honda CB550 Four vs Triumph Bonneville T120
Honda CB550 Four scores 85/100 overall against Triumph Bonneville T120 on 82/100. On the road: 82–65. As classics: 88–98. Overall result: Honda CB550 Four.
Triumph Bonneville T120
82/100 Overall
65 On the road98 As a classic
The numbers
Category-by-category result
| Category | Honda CB550 | Triumph Bonneville | Advantage |
|---|---|---|---|
| road | |||
| PerformanceDirect comparison of power, acceleration and usable performance across the pre-1990 classic field. | 8 | 6 | Honda CB550 |
| HandlingSteering, stability, weight and real-road manners. | 8 | 8 | Level |
| BrakingDirect comparison of real stopping ability without an age allowance. | 7 | 5 | Honda CB550 |
| ReliabilityEngine, electrics and general dependability when properly maintained. | 9 | 6 | Honda CB550 |
| Ease of ownershipMaintenance, parts supply and access to specialist knowledge. | 9 | 8 | Honda CB550 |
| ComfortRiding position, vibration and suitability for longer journeys. | 8 | 6 | Honda CB550 |
| classic | |||
| StylingDesign quality, visual presence and period appeal. | 9 | 10 | Triumph Bonneville |
| Historical importanceInfluence on motorcycling and importance within its era. | 9 | 10 | Triumph Bonneville |
| Collector appealLong-term desirability among classic motorcycle enthusiasts. | 9 | 9 | Level |
| CharacterSound, feel, personality and memorable riding experience. | 8 | 10 | Triumph Bonneville |
Choose the Honda CB550 if…
you want classic Honda-four refinement in a lighter, friendlier and often sweeter package than the CB750.
Choose the Triumph Bonneville if…
you value lightness, accessible mechanical simplicity and the sound and feel of a classic British twin.
Background
History
Honda CB550
The Honda CB550 Four was produced from 1974–1978 and used a 544cc air-cooled SOHC inline four. Within this comparison library it stands out particularly for styling, reliability, ownership appeal. 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?
Honda CB550
- Its production span in this library runs from 1974 to 1978.
- The recorded engine description is: 544cc air-cooled SOHC inline four.
- Its strongest comparison scores are styling, reliability, ownership appeal.
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
Honda CB550
Collector interest is strongest where condition, originality and correct period details support the identity of the Honda CB550 Four. Its library score for styling is 9/10. 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
Honda CB550
- Confirm the frame and engine identity match the advertised model and year.
- Check cold starting, smoke, oil leaks and unusual mechanical noise.
- Check carburettor balance, charging output and exhaust condition across all cylinders.
- 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 Honda CB550
Rivals to the Triumph Bonneville
Final result
The verdict
Honda CB550 Four wins the direct on-the-road comparison. Triumph Bonneville T120 wins the classic-motorcycle comparison. Honda CB550 Four takes the overall result after the road and classic scores are weighted equally.