The 1959 Triumph Bonneville T120 from United Kingdom was powered by a 649cc OHV twin producing 46hp at 6500rpm. Weighing 172.0kg (379 lbs) and with a seat height of 790mm, it was aimed at standard riders.
The 1967 Triumph Trophy TR6C by contrast offered 649cc of OHV twin power, delivering 40hp at 6500rpm. Tipping the scales at 172.0kg (379 lbs) with a top speed of 165km/h (103 mph), it offered a distinct riding experience. 1950s bikes represent the golden age of British motorcycling and early Japanese innovation, with well-maintained examples commanding premium prices.
Specifications Comparison
| 1959 Triumph Bonneville T120 | 1967 Triumph Trophy TR6C | |
|---|---|---|
| Displacement | 649 cc | 649 cc |
| Power | 46 hp | 40 hp |
| Torque | 52.0 Nm | 48.0 Nm |
| Cylinders | 2 | 2 |
| Top Speed | 177 km/h | 165 km/h |
| Quarter Mile | — | — |
| Dry Weight | 172.0 kg | 172.0 kg |
| Wet Weight | 185.0 kg | 185.0 kg |
| Seat Height | 790 mm | 810 mm |
| Wheelbase | 1400 mm | 1400 mm |
| Fuel Capacity | 14.0 L | 14.0 L |
| Gears | 4 -speed | 4 -speed |
The Verdict
Comparing these two Triumph machines reveals the brand's evolution. The 1959 Triumph Bonneville T120 laid the groundwork with 46hp, while the later 1967 Triumph Trophy TR6C pushed output to 40hp. From a collector's perspective, the 1959 Triumph Bonneville T120 holds the edge with a 9/10 rating. Either way, both are worthy additions to any Triumph collection. Parts availability is good for the 1959 Triumph Bonneville T120 and moderate for the 1967 Triumph Trophy TR6C — an important factor for any restoration project.
About the 1959 Triumph Bonneville T120
The 1959 1959 Triumph Bonneville T120 packs a 649cc OHV twin engine with 46hp into a standard motorcycle package from Triumph.
Full 1959 Triumph Bonneville T120 Profile →About the 1967 Triumph Trophy TR6C
Introduced in 1967, the 1967 Triumph Trophy TR6C features a 649cc OHV twin engine producing 40hp, establishing itself as a notable dual-sport.
Full 1967 Triumph Trophy TR6C Profile →