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The 1959 Triumph TR6 Trophy and 1955 BSA B33 are both iconic 1950s standards that defined their respective markets.
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 1955 BSA B33 by contrast offered 499cc of OHV single power, delivering 23hp at 5500rpm. Tipping the scales at 170.0kg (375 lbs) with a top speed of 130km/h (81 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.
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 1955 BSA B33 by contrast offered 499cc of OHV single power, delivering 23hp at 5500rpm. Tipping the scales at 170.0kg (375 lbs) with a top speed of 130km/h (81 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 | 1955 BSA B33 | |
|---|---|---|
| Displacement | 649 cc | 499 cc |
| Power | 40 hp | 23 hp |
| Torque | 48.0 Nm | 35.0 Nm |
| Cylinders | 2 | 1 |
| Top Speed | 170 km/h | 130 km/h |
| Quarter Mile | — | — |
| Dry Weight | 170.0 kg | 170.0 kg |
| Wet Weight | 183.0 kg | 183.0 kg |
| Seat Height | 790 mm | 780 mm |
| Wheelbase | 1400 mm | 1370 mm |
| Fuel Capacity | 14.0 L | 14.0 L |
| Gears | 4 -speed | 4 -speed |
The Verdict
For pure standard performance, the 1959 Triumph TR6 Trophy has the edge thanks to more power (40hp vs 23hp) and a higher top speed. The 1955 BSA B33, however, excels when all-round versatility and everyday riding is the priority.
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 1955 BSA B33
The 1955 1955 BSA B33 is a 499cc single-cylinder standard motorcycle that became one of BSA's most memorable motorcycles of the 1950s.
Full 1955 BSA B33 Profile →