VS
The 1975 Honda CB400F Super Sport and 1938 Triumph Speed Twin both compete in the standard segment, offering riders distinct interpretations of the formula.
The 1975 Honda CB400F Super Sport from Japan was powered by a 408cc SOHC inline-4 producing 37hp at 8500rpm. Weighing 174.0kg (384 lbs) and with a seat height of 790mm, it was aimed at standard riders.
The 1938 Triumph Speed Twin, hailing from United Kingdom, by contrast offered 498cc of OHV twin power, delivering 27hp at 6300rpm. Tipping the scales at 168.0kg (370 lbs) with a top speed of 148km/h (92 mph), it offered a distinct riding experience. 1970s bikes from the Japanese superbike revolution are increasingly sought after. Clean, original examples have seen significant value appreciation.
The 1975 Honda CB400F Super Sport from Japan was powered by a 408cc SOHC inline-4 producing 37hp at 8500rpm. Weighing 174.0kg (384 lbs) and with a seat height of 790mm, it was aimed at standard riders.
The 1938 Triumph Speed Twin, hailing from United Kingdom, by contrast offered 498cc of OHV twin power, delivering 27hp at 6300rpm. Tipping the scales at 168.0kg (370 lbs) with a top speed of 148km/h (92 mph), it offered a distinct riding experience. 1970s bikes from the Japanese superbike revolution are increasingly sought after. Clean, original examples have seen significant value appreciation.
Specifications Comparison
| 1975 Honda CB400F Super Sport | 1938 Triumph Speed Twin | |
|---|---|---|
| Displacement | 408 cc | 498 cc |
| Power | 37 hp | 27 hp |
| Torque | 32.0 Nm | 36.0 Nm |
| Cylinders | 4 | 2 |
| Top Speed | 165 km/h | 148 km/h |
| Quarter Mile | — | — |
| Dry Weight | 174.0 kg | 168.0 kg |
| Wet Weight | 189.0 kg | 180.0 kg |
| Seat Height | 790 mm | 780 mm |
| Wheelbase | 1375 mm | 1370 mm |
| Fuel Capacity | 13.0 L | 14.0 L |
| Gears | 6 -speed | 4 -speed |
The Verdict
For pure standard performance, the 1975 Honda CB400F Super Sport has the edge thanks to more power (37hp vs 27hp) and a higher top speed. The 1938 Triumph Speed Twin, however, excels when all-round versatility and everyday riding is the priority and offers a lighter package. Parts availability is good for the 1975 Honda CB400F Super Sport and moderate for the 1938 Triumph Speed Twin — an important factor for any restoration project.
About the 1975 Honda CB400F Super Sport
Born in 1975, the 1975 Honda CB400F Super Sport is a 408cc four-cylinder standard motorcycle producing 37hp from Honda.
Full 1975 Honda CB400F Super Sport Profile →About the 1938 Triumph Speed Twin
The 1938 1938 Triumph Speed Twin packs a 498cc OHV twin engine with 27hp into a standard motorcycle package from Triumph.
Full 1938 Triumph Speed Twin Profile →