Suzuki GT550
77/100 Overall
73 On the road80 As a classic
Classic motorcycle head-to-head
Suzuki GT550 vs Yamaha RD400
Suzuki GT550 scores 77/100 overall against Yamaha RD400 on 81/100. On the road: 73–73. As classics: 80–88. Overall result: Yamaha RD400.
Photo: Schreiberling58 · CC BY-SA 3.0
Yamaha RD400
81/100 Overall
73 On the road88 As a classic
The numbers
Category-by-category result
| Category | Suzuki GT550 | Yamaha RD400 | Advantage |
|---|---|---|---|
| road | |||
| PerformanceDirect comparison of power, acceleration and usable performance across the pre-1990 classic field. | 8 | 8 | Level |
| HandlingSteering, stability, weight and real-road manners. | 7 | 9 | Yamaha RD400 |
| BrakingDirect comparison of real stopping ability without an age allowance. | 7 | 7 | Level |
| ReliabilityEngine, electrics and general dependability when properly maintained. | 8 | 7 | Suzuki GT550 |
| Ease of ownershipMaintenance, parts supply and access to specialist knowledge. | 7 | 7 | Level |
| ComfortRiding position, vibration and suitability for longer journeys. | 7 | 6 | Suzuki GT550 |
| classic | |||
| StylingDesign quality, visual presence and period appeal. | 8 | 8 | Level |
| Historical importanceInfluence on motorcycling and importance within its era. | 7 | 8 | Yamaha RD400 |
| Collector appealLong-term desirability among classic motorcycle enthusiasts. | 8 | 9 | Yamaha RD400 |
| CharacterSound, feel, personality and memorable riding experience. | 9 | 10 | Yamaha RD400 |
Choose the Suzuki GT550 if…
you want smooth two-stroke triple character, useful road manners and an appealing alternative to the better-known GT750.
Choose the Yamaha RD400 if…
you want sharp two-stroke performance, light handling and one of Yamaha's most entertaining road motorcycles.
Background
History
Suzuki GT550
The Suzuki GT550 was produced from 1972–1977 and used a 543cc air-cooled two-stroke triple. Within this comparison library it stands out particularly for character, styling, reliability. It suits riders who value the qualities described in its original profile rather than choosing by specification alone.
Yamaha RD400
The Yamaha RD400 was produced from 1976–1979 and used a 398cc air-cooled two-stroke parallel twin. Within this comparison library it stands out particularly for character, handling, collector appeal. It suits riders who value the qualities described in its original profile rather than choosing by specification alone.
Interesting details
Did you know?
Suzuki GT550
- Its production span in this library runs from 1972 to 1977.
- The recorded engine description is: 543cc air-cooled two-stroke triple.
- Its strongest comparison scores are character, styling, reliability.
Yamaha RD400
- Its production span in this library runs from 1976 to 1979.
- The recorded engine description is: 398cc air-cooled two-stroke parallel twin.
- Its strongest comparison scores are character, handling, collector appeal.
Present-day appeal
Collector notes
Suzuki GT550
Collector interest is strongest where condition, originality and correct period details support the identity of the Suzuki GT550. Its library score for character 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.
Yamaha RD400
Collector interest is strongest where condition, originality and correct period details support the identity of the Yamaha RD400. Its library score for character 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
Suzuki GT550
- 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.
Yamaha RD400
- 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 Suzuki GT550
Rivals to the Yamaha RD400
Final result
The verdict
On the road the motorcycles finish level. Yamaha RD400 wins the classic-motorcycle comparison. Yamaha RD400 takes the overall result after the road and classic scores are weighted equally.