Kawasaki Z1 900
87/100 Overall
73 On the road100 As a classic
Classic motorcycle head-to-head
Kawasaki Z1 900 vs Suzuki RG500 Gamma
Kawasaki Z1 900 scores 87/100 overall against Suzuki RG500 Gamma on 89/100. On the road: 73–77. As classics: 100–100. Overall result: Suzuki RG500 Gamma.
Photo: Thesupermat · CC BY-SA 4.0
Suzuki RG500 Gamma
89/100 Overall
77 On the road100 As a classic
The numbers
Category-by-category result
| Category | Kawasaki Z1 | Suzuki RG500 | Advantage |
|---|---|---|---|
| road | |||
| PerformanceDirect comparison of power, acceleration and usable performance across the pre-1990 classic field. | 9 | 10 | Suzuki RG500 |
| HandlingSteering, stability, weight and real-road manners. | 6 | 10 | Suzuki RG500 |
| BrakingDirect comparison of real stopping ability without an age allowance. | 6 | 9 | Suzuki RG500 |
| ReliabilityEngine, electrics and general dependability when properly maintained. | 8 | 7 | Kawasaki Z1 |
| Ease of ownershipMaintenance, parts supply and access to specialist knowledge. | 8 | 5 | Kawasaki Z1 |
| ComfortRiding position, vibration and suitability for longer journeys. | 7 | 5 | Kawasaki Z1 |
| classic | |||
| StylingDesign quality, visual presence and period appeal. | 10 | 10 | Level |
| 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 |
Choose the Kawasaki Z1 if…
you want muscular 1970s superbike performance, imposing styling and major Japanese collector status.
Choose the Suzuki RG500 if…
you want a road-going Grand Prix experience, extraordinary two-stroke performance and blue-chip collector status.
Background
History
Kawasaki Z1
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.
Suzuki RG500
The Suzuki RG500 Gamma was produced from 1985–1987 and used a 498cc liquid-cooled two-stroke square four. Within this comparison library it stands out particularly for styling, performance, historic importance. It suits riders who value the qualities described in its original profile rather than choosing by specification alone.
Interesting details
Did you know?
Kawasaki Z1
- Its production span in this library runs from 1972 to 1975.
- The recorded engine description is: 903cc air-cooled DOHC inline four.
- Its strongest comparison scores are styling, historic importance, collector appeal.
Suzuki RG500
- Its production span in this library runs from 1985 to 1987.
- The recorded engine description is: 498cc liquid-cooled two-stroke square four.
- Its strongest comparison scores are styling, performance, historic importance.
Present-day appeal
Collector notes
Kawasaki Z1
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.
Suzuki RG500
Collector interest is strongest where condition, originality and correct period details support the identity of the Suzuki RG500 Gamma. 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
Kawasaki Z1
- 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.
Suzuki RG500
- Confirm the frame and engine identity match the advertised model and year.
- Check cold starting, smoke, oil leaks and unusual mechanical noise.
- Check the oil-injection or premix arrangement, crank seals and exhaust condition carefully.
- 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 Kawasaki Z1
Rivals to the Suzuki RG500
Final result
The verdict
Suzuki RG500 Gamma wins the direct on-the-road comparison. As classic motorcycles they also finish level. Suzuki RG500 Gamma takes the overall result after the road and classic scores are weighted equally.