
Classic motorcycle head-to-head
Triumph Bonneville T120 vs Yamaha RD500LC
Triumph Bonneville T120 scores 82/100 overall against Yamaha RD500LC on 84/100. On the road: 65–68. As classics: 98–100. Overall result: Yamaha RD500LC.


Yamaha RD500LC
The numbers
Category-by-category result
| Category | Triumph Bonneville | Yamaha RD500LC | Advantage |
|---|---|---|---|
| road | |||
| PerformanceDirect comparison of power, acceleration and usable performance across the pre-1990 classic field. | 6 | 9 | Yamaha RD500LC |
| HandlingSteering, stability, weight and real-road manners. | 8 | 8 | Level |
| BrakingDirect comparison of real stopping ability without an age allowance. | 5 | 7 | Yamaha RD500LC |
| ReliabilityEngine, electrics and general dependability when properly maintained. | 6 | 6 | Level |
| Ease of ownershipMaintenance, parts supply and access to specialist knowledge. | 8 | 6 | Triumph Bonneville |
| ComfortRiding position, vibration and suitability for longer journeys. | 6 | 5 | Triumph Bonneville |
| 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. | 9 | 10 | Yamaha RD500LC |
| CharacterSound, feel, personality and memorable riding experience. | 10 | 10 | Level |
Choose the Triumph Bonneville if…
you value lightness, accessible mechanical simplicity and the sound and feel of a classic British twin.
Choose the Yamaha RD500LC if…
you want genuine Grand Prix-inspired engineering, explosive two-stroke performance and one of Yamaha's most memorable road-going race replicas.
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 RD500LC
The Yamaha RD500LC was produced from 1984–1986 and used a 499cc liquid-cooled two-stroke V4. Within this comparison library it stands out particularly for character, collector appeal and historic importance. It is included as an important reference point for comparisons with its closest period rivals.
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 RD500LC
- Its production span in this library runs from 1984 to 1986.
- The recorded engine description is: 499cc liquid-cooled two-stroke V4.
- Its strongest comparison scores are character, collector appeal and historic importance.
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 RD500LC
Collector interest is strongest where condition, originality and correct period details support the identity of the Yamaha RD500LC. 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
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 RD500LC
- 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 system, crank seals, cooling system 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 RD500LC
Final result
The verdict
Yamaha RD500LC wins the direct on-the-road comparison. Yamaha RD500LC wins the classic-motorcycle comparison. Yamaha RD500LC takes the overall result after the road and classic scores are weighted equally.