
Classic motorcycle head-to-head
Triumph Bonneville T120 vs Yamaha DT-1
Triumph Bonneville T120 scores 82/100 overall against Yamaha DT-1 on 78/100. On the road: 65–65. As classics: 98–90. Overall result: Triumph Bonneville T120.


Photo: Rainmaker47 · CC BY-SA 4.0
Yamaha DT-1
The numbers
Category-by-category result
| Category | Triumph Bonneville | Yamaha DT-1 | Advantage |
|---|---|---|---|
| road | |||
| PerformanceDirect comparison of power, acceleration and usable performance across the pre-1990 classic field. | 6 | 6 | Level |
| HandlingSteering, stability, weight and real-road manners. | 8 | 8 | Level |
| BrakingDirect comparison of real stopping ability without an age allowance. | 5 | 5 | Level |
| ReliabilityEngine, electrics and general dependability when properly maintained. | 6 | 7 | Yamaha DT-1 |
| Ease of ownershipMaintenance, parts supply and access to specialist knowledge. | 8 | 7 | Triumph Bonneville |
| ComfortRiding position, vibration and suitability for longer journeys. | 6 | 6 | Level |
| classic | |||
| StylingDesign quality, visual presence and period appeal. | 10 | 8 | Triumph Bonneville |
| Historical importanceInfluence on motorcycling and importance within its era. | 10 | 10 | Level |
| Collector appealLong-term desirability among classic motorcycle enthusiasts. | 9 | 9 | Level |
| CharacterSound, feel, personality and memorable riding experience. | 10 | 9 | Triumph Bonneville |
Choose the Triumph Bonneville if…
you value lightness, accessible mechanical simplicity and the sound and feel of a classic British twin.
Choose the Yamaha DT-1 if…
you want the landmark trail motorcycle that helped establish the modern dual-purpose class.
Background
History
Triumph Bonneville
The Triumph Bonneville T120 was produced from 1959–1973 and used a 649cc air-cooled parallel twin. Within this comparison library it stands out particularly for styling, historic importance, character. It suits riders who value the qualities described in its original profile rather than choosing by specification alone.
Yamaha DT-1
The Yamaha DT-1 was produced from 1968–1971 and used a 246cc air-cooled two-stroke single. 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.
Interesting details
Did you know?
Triumph Bonneville
- Its production span in this library runs from 1959 to 1973.
- The recorded engine description is: 649cc air-cooled parallel twin.
- Its strongest comparison scores are styling, historic importance, character.
Yamaha DT-1
- Its production span in this library runs from 1968 to 1971.
- The recorded engine description is: 246cc air-cooled two-stroke single.
- Its strongest comparison scores are historic importance, collector appeal, character.
Present-day appeal
Collector notes
Triumph Bonneville
Collector interest is strongest where condition, originality and correct period details support the identity of the Triumph Bonneville T120. 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.
Yamaha DT-1
Collector interest is strongest where condition, originality and correct period details support the identity of the Yamaha DT-1. 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.
Before you buy
Buying checks
Triumph Bonneville
- Confirm the frame and engine identity match the advertised model and year.
- Check cold starting, smoke, oil leaks and unusual mechanical noise.
- Check vibration-related fasteners, primary drive condition and signs of persistent oil leakage.
- 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 DT-1
- 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 Triumph Bonneville
Rivals to the Yamaha DT-1
Final result
The verdict
On the road the motorcycles finish level. Triumph Bonneville T120 wins the classic-motorcycle comparison. Triumph Bonneville T120 takes the overall result after the road and classic scores are weighted equally.