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 1966 Kawasaki W1 650 by contrast offered 624cc of OHV vertical twin power, delivering 50hp at 7000rpm. Tipping the scales at 200.0kg (441 lbs) with a top speed of 170km/h (106 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 | 1966 Kawasaki W1 650 | |
|---|---|---|
| Displacement | 408 cc | 624 cc |
| Power | 37 hp | 50 hp |
| Torque | 32.0 Nm | 49.0 Nm |
| Cylinders | 4 | 2 |
| Top Speed | 165 km/h | 170 km/h |
| Quarter Mile | — | — |
| Dry Weight | 174.0 kg | 200.0 kg |
| Wet Weight | 189.0 kg | 215.0 kg |
| Seat Height | 790 mm | 800 mm |
| Wheelbase | 1375 mm | 1420 mm |
| Fuel Capacity | 13.0 L | 15.0 L |
| Gears | 6 -speed | 4 -speed |
The Verdict
For pure standard performance, the 1966 Kawasaki W1 650 has the edge thanks to more power (50hp vs 37hp) and a higher top speed. The 1975 Honda CB400F Super Sport, however, excels when all-round versatility and everyday riding is the priority. For collectors, the 1975 Honda CB400F Super Sport commands more attention with a 8/10 collectibility rating. Parts availability is good for the 1975 Honda CB400F Super Sport and moderate for the 1966 Kawasaki W1 650 — 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 1966 Kawasaki W1 650
Kawasaki released the 1966 Kawasaki W1 650 in 1966 with a 624cc OHV vertical twin powerplant making 50hp — a definitive standard motorcycle.
Full 1966 Kawasaki W1 650 Profile →