
Photo: Joe Tordiff · CC BY-SA 2.0
Classic motorcycle head-to-head
Honda CB400F scores 78/100 overall against Kawasaki Z650 on 86/100. On the road: 70–83. As classics: 85–88. Overall result: Kawasaki Z650.

Photo: Joe Tordiff · CC BY-SA 2.0

The numbers
| Category | Honda CB400F | Kawasaki Z650 | Advantage |
|---|---|---|---|
| road | |||
| PerformanceDirect comparison of power, acceleration and usable performance across the pre-1990 classic field. | 6 | 8 | Kawasaki Z650 |
| HandlingSteering, stability, weight and real-road manners. | 8 | 9 | Kawasaki Z650 |
| BrakingDirect comparison of real stopping ability without an age allowance. | 6 | 8 | Kawasaki Z650 |
| ReliabilityEngine, electrics and general dependability when properly maintained. | 8 | 9 | Kawasaki Z650 |
| Ease of ownershipMaintenance, parts supply and access to specialist knowledge. | 8 | 8 | Level |
| ComfortRiding position, vibration and suitability for longer journeys. | 6 | 8 | Kawasaki Z650 |
| classic | |||
| StylingDesign quality, visual presence and period appeal. | 9 | 9 | Level |
| Historical importanceInfluence on motorcycling and importance within its era. | 8 | 9 | Kawasaki Z650 |
| Collector appealLong-term desirability among classic motorcycle enthusiasts. | 9 | 9 | Level |
| CharacterSound, feel, personality and memorable riding experience. | 8 | 8 | Level |
you want jewel-like engineering, light controls, a beautiful four-into-one exhaust and an engaging small-capacity Honda four.
you want the sweet-handling middleweight Kawasaki four that combined strong performance with more manageable size than the Z1.
Background
The Honda CB400F was produced from 1975–1977 and used a 408cc air-cooled SOHC inline four. Within this comparison library it stands out particularly for styling, collector appeal, reliability. It suits riders who value the qualities described in its original profile rather than choosing by specification alone.
The Kawasaki Z650 was produced from 1976–1983 and used a 652cc air-cooled DOHC inline four. Within this comparison library it stands out particularly for styling, reliability, historic importance. It suits riders who value the qualities described in its original profile rather than choosing by specification alone.
Interesting details
Present-day appeal
Collector interest is strongest where condition, originality and correct period details support the identity of the Honda CB400F. 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.
Collector interest is strongest where condition, originality and correct period details support the identity of the Kawasaki Z650. 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.
Before you buy
Period opposition
Final result
Kawasaki Z650 wins the direct on-the-road comparison. Kawasaki Z650 wins the classic-motorcycle comparison. Kawasaki Z650 takes the overall result after the road and classic scores are weighted equally.