VS
The 1975 Honda CB400F Super Sport and 1973 Kawasaki Z1-900 RS are both iconic 1970s standards that defined their respective markets.
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 1973 Kawasaki Z1-900 RS by contrast offered 903cc of DOHC inline-4 power, delivering 82hp at 8500rpm. Tipping the scales at 230.0kg (507 lbs) with a top speed of 210km/h (130 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 1973 Kawasaki Z1-900 RS by contrast offered 903cc of DOHC inline-4 power, delivering 82hp at 8500rpm. Tipping the scales at 230.0kg (507 lbs) with a top speed of 210km/h (130 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 | 1973 Kawasaki Z1-900 RS | |
|---|---|---|
| Displacement | 408 cc | 903 cc |
| Power | 37 hp | 82 hp |
| Torque | 32.0 Nm | 73.0 Nm |
| Cylinders | 4 | 4 |
| Top Speed | 165 km/h | 210 km/h |
| Quarter Mile | — | — |
| Dry Weight | 174.0 kg | 230.0 kg |
| Wet Weight | 189.0 kg | 250.0 kg |
| Seat Height | 790 mm | 820 mm |
| Wheelbase | 1375 mm | 1490 mm |
| Fuel Capacity | 13.0 L | 18.0 L |
| Gears | 6 -speed | 5 -speed |
The Verdict
For pure standard performance, the 1973 Kawasaki Z1-900 RS has the edge thanks to more power (82hp 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. Parts availability is good for the 1975 Honda CB400F Super Sport and moderate for the 1973 Kawasaki Z1-900 RS — 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 1973 Kawasaki Z1-900 RS
Kawasaki released the 1973 Kawasaki Z1-900 RS in 1973 with a 903cc DOHC inline-4 powerplant making 82hp — a definitive standard motorcycle.
Full 1973 Kawasaki Z1-900 RS Profile →