The 1970 Honda CB100 from Japan was powered by a 99cc SOHC single producing 10hp at 9500rpm. Weighing 87.0kg (192 lbs) and with a seat height of 750mm, it was aimed at standard riders.
The 1972 Kawasaki Z1 900 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
| 1970 Honda CB100 | 1972 Kawasaki Z1 900 | |
|---|---|---|
| Displacement | 99 cc | 903 cc |
| Power | 10 hp | 82 hp |
| Torque | 7.5 Nm | 73.0 Nm |
| Cylinders | 1 | 4 |
| Top Speed | 105 km/h | 210 km/h |
| Quarter Mile | — | — |
| Dry Weight | 87.0 kg | 230.0 kg |
| Wet Weight | 96.0 kg | 250.0 kg |
| Seat Height | 750 mm | 820 mm |
| Wheelbase | 1195 mm | 1490 mm |
| Fuel Capacity | 8.5 L | 18.0 L |
| Gears | 5 -speed | 5 -speed |
The Verdict
For pure standard performance, the 1972 Kawasaki Z1 900 has the edge thanks to more power (82hp vs 10hp) and a higher top speed. The 1970 Honda CB100, however, excels when all-round versatility and everyday riding is the priority. For collectors, the 1972 Kawasaki Z1 900 commands more attention with a 9/10 collectibility rating. Parts availability is moderate for the 1970 Honda CB100 and good for the 1972 Kawasaki Z1 900 — an important factor for any restoration project.
About the 1970 Honda CB100
Introduced in 1970, the 1970 Honda CB100 features a 99cc SOHC single engine producing 10hp, establishing itself as a notable standard motorcycle.
Full 1970 Honda CB100 Profile →About the 1972 Kawasaki Z1 900
The 1972 1972 Kawasaki Z1 900 is a 903cc four-cylinder standard motorcycle that became one of Kawasaki's most memorable motorcycles of the 1970s.
Full 1972 Kawasaki Z1 900 Profile →