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The 1970 Honda CB100 and 1976 Yamaha RD400 are both iconic 1970s standards that defined their respective markets.
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 1976 Yamaha RD400 by contrast offered 398cc of 2-stroke twin power, delivering 40hp at 7000rpm. Tipping the scales at 153.0kg (337 lbs) with a top speed of 168km/h (104 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 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 1976 Yamaha RD400 by contrast offered 398cc of 2-stroke twin power, delivering 40hp at 7000rpm. Tipping the scales at 153.0kg (337 lbs) with a top speed of 168km/h (104 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 | 1976 Yamaha RD400 | |
|---|---|---|
| Displacement | 99 cc | 398 cc |
| Power | 10 hp | 40 hp |
| Torque | 7.5 Nm | 35.0 Nm |
| Cylinders | 1 | 2 |
| Top Speed | 105 km/h | 168 km/h |
| Quarter Mile | — | — |
| Dry Weight | 87.0 kg | 153.0 kg |
| Wet Weight | 96.0 kg | 166.0 kg |
| Seat Height | 750 mm | 790 mm |
| Wheelbase | 1195 mm | 1360 mm |
| Fuel Capacity | 8.5 L | 14.0 L |
| Gears | 5 -speed | 6 -speed |
The Verdict
For pure standard performance, the 1976 Yamaha RD400 has the edge thanks to more power (40hp 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 1976 Yamaha RD400 commands more attention with a 6/10 collectibility rating.
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 1976 Yamaha RD400
Born in 1976, the 1976 Yamaha RD400 is a 398cc twin-cylinder standard motorcycle producing 40hp from Yamaha.
Full 1976 Yamaha RD400 Profile →