
Photo: 1969_Kawasaki_500_H1_MachIII.jpg: Mike Schinkel derivative work: Ligabo (talk) · CC BY 2.0
Classic motorcycle head-to-head
Kawasaki H1 500 Mach III scores 79/100 overall against Kawasaki Z1 900 on 87/100. On the road: 60–73. As classics: 98–100. Overall result: Kawasaki Z1 900.

Photo: 1969_Kawasaki_500_H1_MachIII.jpg: Mike Schinkel derivative work: Ligabo (talk) · CC BY 2.0

The numbers
| Category | Kawasaki H1 | Kawasaki Z1 | Advantage |
|---|---|---|---|
| road | |||
| PerformanceDirect comparison of power, acceleration and usable performance across the pre-1990 classic field. | 9 | 9 | Level |
| HandlingSteering, stability, weight and real-road manners. | 5 | 6 | Kawasaki Z1 |
| BrakingDirect comparison of real stopping ability without an age allowance. | 5 | 6 | Kawasaki Z1 |
| ReliabilityEngine, electrics and general dependability when properly maintained. | 6 | 8 | Kawasaki Z1 |
| Ease of ownershipMaintenance, parts supply and access to specialist knowledge. | 6 | 8 | Kawasaki Z1 |
| ComfortRiding position, vibration and suitability for longer journeys. | 5 | 7 | Kawasaki Z1 |
| classic | |||
| StylingDesign quality, visual presence and period appeal. | 9 | 10 | Kawasaki Z1 |
| Historical importanceInfluence on motorcycling and importance within its era. | 10 | 10 | Level |
| Collector appealLong-term desirability among classic motorcycle enthusiasts. | 10 | 10 | Level |
| CharacterSound, feel, personality and memorable riding experience. | 10 | 10 | Level |
you want explosive two-stroke acceleration, outrageous period character and one of Kawasaki's most famous motorcycles.
you want muscular 1970s superbike performance, imposing styling and major Japanese collector status.
Background
The Kawasaki H1 500 Mach III was produced from 1969–1976 and used a 498cc air-cooled two-stroke triple. Within this comparison library it stands out particularly for historic importance, collector appeal, character. 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 Kawasaki H1 500 Mach III. 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.
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.