
Photo: The Otaku Ben 64 · CC BY-SA 3.0
Classic motorcycle head-to-head
Honda C90 Super Cub scores 78/100 overall against Kawasaki Z1 900 on 87/100. On the road: 67–73. As classics: 88–100. Overall result: Kawasaki Z1 900.

Photo: The Otaku Ben 64 · CC BY-SA 3.0

The numbers
| Category | Honda C90 | Kawasaki Z1 | Advantage |
|---|---|---|---|
| road | |||
| PerformanceDirect comparison of power, acceleration and usable performance across the pre-1990 classic field. | 2 | 9 | Kawasaki Z1 |
| HandlingSteering, stability, weight and real-road manners. | 7 | 6 | Honda C90 |
| BrakingDirect comparison of real stopping ability without an age allowance. | 4 | 6 | Kawasaki Z1 |
| ReliabilityEngine, electrics and general dependability when properly maintained. | 10 | 8 | Honda C90 |
| Ease of ownershipMaintenance, parts supply and access to specialist knowledge. | 10 | 8 | Honda C90 |
| ComfortRiding position, vibration and suitability for longer journeys. | 7 | 7 | Level |
| classic | |||
| StylingDesign quality, visual presence and period appeal. | 8 | 10 | Kawasaki Z1 |
| Historical importanceInfluence on motorcycling and importance within its era. | 10 | 10 | Level |
| Collector appealLong-term desirability among classic motorcycle enthusiasts. | 8 | 10 | Kawasaki Z1 |
| CharacterSound, feel, personality and memorable riding experience. | 9 | 10 | Kawasaki Z1 |
you value simple engineering, legendary reliability and one of the most important everyday motorcycles ever made.
you want muscular 1970s superbike performance, imposing styling and major Japanese collector status.
Background
The Honda C90 Super Cub was produced from 1966–1989 and used a 89cc air-cooled four-stroke single. Within this comparison library it stands out particularly for reliability, ownership appeal, historic importance. It suits riders who value the qualities described in its original profile rather than choosing by specification alone.
The Kawasaki Z1 900 was produced from 1972–1975 and used a 903cc air-cooled DOHC inline four. Within this comparison library it stands out particularly for styling, historic importance, collector appeal. 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 C90 Super Cub. Its library score for reliability 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.
Collector interest is strongest where condition, originality and correct period details support the identity of the Kawasaki Z1 900. 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
Period opposition
Final result
Kawasaki Z1 900 wins the direct on-the-road comparison. Kawasaki Z1 900 wins the classic-motorcycle comparison. Kawasaki Z1 900 takes the overall result after the road and classic scores are weighted equally.