The 1959 Triumph TR6 Trophy from United Kingdom was powered by a 649cc OHV twin producing 40hp at 6500rpm. Weighing 170.0kg (375 lbs) and with a seat height of 790mm, it was aimed at standard riders.
The 1957 Harley-Davidson Sportster XL, hailing from United States, by contrast offered 883cc of OHV V-twin Ironhead power, delivering 40hp at 5500rpm. Tipping the scales at 200.0kg (441 lbs) with a top speed of 160km/h (99 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 TR6 Trophy | 1957 Harley-Davidson Sportster XL | |
|---|---|---|
| Displacement | 649 cc | 883 cc |
| Power | 40 hp | 40 hp |
| Torque | 48.0 Nm | 56.0 Nm |
| Cylinders | 2 | 2 |
| Top Speed | 170 km/h | 160 km/h |
| Quarter Mile | — | — |
| Dry Weight | 170.0 kg | 200.0 kg |
| Wet Weight | 183.0 kg | 220.0 kg |
| Seat Height | 790 mm | 740 mm |
| Wheelbase | 1400 mm | 1460 mm |
| Fuel Capacity | 14.0 L | 13.0 L |
| Gears | 4 -speed | 4 -speed |
The Verdict
For pure standard performance, the 1959 Triumph TR6 Trophy has the edge thanks to a higher top speed and lower weight. The 1957 Harley-Davidson Sportster XL, however, excels when all-round versatility and everyday riding is the priority. For collectors, the 1957 Harley-Davidson Sportster XL commands more attention with a 9/10 collectibility rating. Parts availability is moderate for the 1959 Triumph TR6 Trophy and good for the 1957 Harley-Davidson Sportster XL — an important factor for any restoration project.
About the 1959 Triumph TR6 Trophy
Introduced in 1959, the 1959 Triumph TR6 Trophy features a 649cc OHV twin engine producing 40hp, establishing itself as a notable standard motorcycle.
Full 1959 Triumph TR6 Trophy Profile →About the 1957 Harley-Davidson Sportster XL
Introduced in 1957, the 1957 Harley-Davidson Sportster XL features a 883cc OHV V-twin Ironhead engine producing 40hp, establishing itself as a notable standard motorcycle.
Full 1957 Harley-Davidson Sportster XL Profile →