
Photo: Classic & Classy Motorcycles Ltd · Owned by Classic & Classy Motorcycles Ltd
Classic motorcycle head-to-head
Triumph Bonneville T140 scores 81/100 overall against Yamaha XS650 on 77/100. On the road: 72–75. As classics: 90–78. Overall result: Triumph Bonneville T140.

Photo: Classic & Classy Motorcycles Ltd · Owned by Classic & Classy Motorcycles Ltd

The numbers
| Category | Triumph T140 | Yamaha XS650 | Advantage |
|---|---|---|---|
| road | |||
| PerformanceDirect comparison of power, acceleration and usable performance across the pre-1990 classic field. | 7 | 7 | Level |
| HandlingSteering, stability, weight and real-road manners. | 8 | 7 | Triumph T140 |
| BrakingDirect comparison of real stopping ability without an age allowance. | 7 | 7 | Level |
| ReliabilityEngine, electrics and general dependability when properly maintained. | 6 | 8 | Yamaha XS650 |
| Ease of ownershipMaintenance, parts supply and access to specialist knowledge. | 8 | 9 | Yamaha XS650 |
| ComfortRiding position, vibration and suitability for longer journeys. | 7 | 7 | Level |
| classic | |||
| StylingDesign quality, visual presence and period appeal. | 9 | 8 | Triumph T140 |
| Historical importanceInfluence on motorcycling and importance within its era. | 9 | 8 | Triumph T140 |
| Collector appealLong-term desirability among classic motorcycle enthusiasts. | 8 | 7 | Triumph T140 |
| CharacterSound, feel, personality and memorable riding experience. | 10 | 8 | Triumph T140 |
you want classic Bonneville character with 750cc torque, disc brakes and more everyday usability than earlier versions.
you want traditional parallel-twin character with Japanese dependability, good parts support and broad everyday usability.
Background
The Triumph Bonneville T140 was produced from 1973–1983 and used a 744cc air-cooled parallel twin. Within this comparison library it stands out particularly for character, styling, historic importance. It suits riders who value the qualities described in its original profile rather than choosing by specification alone.
The Yamaha XS650 was produced from 1969–1985 and used a 653cc air-cooled parallel twin. Within this comparison library it stands out particularly for ownership appeal, styling, reliability. 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 Triumph Bonneville T140. 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 XS650. Its library score for ownership appeal 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.
Before you buy
Period opposition
Final result
Yamaha XS650 wins the direct on-the-road comparison. Triumph Bonneville T140 wins the classic-motorcycle comparison. Triumph Bonneville T140 takes the overall result after the road and classic scores are weighted equally.