The 1972 Honda CB350 Four from Japan was powered by a 347cc SOHC inline-4 producing 34hp at 9500rpm. Weighing 172.0kg (379 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
| 1972 Honda CB350 Four | 1938 Triumph Speed Twin | |
|---|---|---|
| Displacement | 347 cc | 498 cc |
| Power | 34 hp | 27 hp |
| Torque | 28.0 Nm | 36.0 Nm |
| Cylinders | 4 | 2 |
| Top Speed | 155 km/h | 148 km/h |
| Quarter Mile | — | — |
| Dry Weight | 172.0 kg | 168.0 kg |
| Wet Weight | 185.0 kg | 180.0 kg |
| Seat Height | 790 mm | 780 mm |
| Wheelbase | 1375 mm | 1370 mm |
| Fuel Capacity | 13.0 L | 14.0 L |
| Gears | 5 -speed | 4 -speed |
The Verdict
For pure standard performance, the 1972 Honda CB350 Four has the edge thanks to more power (34hp 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. For collectors, the 1938 Triumph Speed Twin commands more attention with a 9/10 collectibility rating. Parts availability is good for the 1972 Honda CB350 Four and moderate for the 1938 Triumph Speed Twin — an important factor for any restoration project.
About the 1972 Honda CB350 Four
Honda released the 1972 Honda CB350 Four in 1972 with a 347cc SOHC inline-4 powerplant making 34hp — a definitive standard motorcycle.
Full 1972 Honda CB350 Four 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 →