
Photo: Bergfalke2 · CC BY-SA 3.0
Classic motorcycle head-to-head
Yamaha RD350 scores 79/100 overall against Yamaha RD400 on 81/100. On the road: 70–73. As classics: 88–88. Overall result: Yamaha RD400.

Photo: Bergfalke2 · CC BY-SA 3.0

Photo: Schreiberling58 · CC BY-SA 3.0
The numbers
| Category | Yamaha RD350 | Yamaha RD400 | Advantage |
|---|---|---|---|
| road | |||
| PerformanceDirect comparison of power, acceleration and usable performance across the pre-1990 classic field. | 7 | 8 | Yamaha RD400 |
| HandlingSteering, stability, weight and real-road manners. | 8 | 9 | Yamaha RD400 |
| BrakingDirect comparison of real stopping ability without an age allowance. | 6 | 7 | Yamaha RD400 |
| ReliabilityEngine, electrics and general dependability when properly maintained. | 8 | 7 | Yamaha RD350 |
| Ease of ownershipMaintenance, parts supply and access to specialist knowledge. | 8 | 7 | Yamaha RD350 |
| ComfortRiding position, vibration and suitability for longer journeys. | 5 | 6 | Yamaha RD400 |
| classic | |||
| StylingDesign quality, visual presence and period appeal. | 8 | 8 | Level |
| Historical importanceInfluence on motorcycling and importance within its era. | 9 | 8 | Yamaha RD350 |
| Collector appealLong-term desirability among classic motorcycle enthusiasts. | 8 | 9 | Yamaha RD400 |
| CharacterSound, feel, personality and memorable riding experience. | 10 | 10 | Level |
you value light weight, lively acceleration and a simple, exciting two-stroke riding experience.
you want sharp two-stroke performance, light handling and one of Yamaha's most entertaining road motorcycles.
Background
The Yamaha RD350 was produced from 1973–1975 and used a 347cc air-cooled two-stroke parallel twin. Within this comparison library it stands out particularly for character, historic importance, styling. It suits riders who value the qualities described in its original profile rather than choosing by specification alone.
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
Present-day appeal
Collector interest is strongest where condition, originality and correct period details support the identity of the Yamaha RD350. 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.
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
Period opposition
Final result
Yamaha RD400 wins the direct on-the-road comparison. As classic motorcycles they also finish level. Yamaha RD400 takes the overall result after the road and classic scores are weighted equally.