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The 1973 Yamaha RD250 and 1975 Yamaha RD350 represent two chapters in Yamaha's storied history.
The 1973 Yamaha RD250 from Japan was powered by a 247cc 2-stroke twin producing 30hp at 7500rpm. Weighing 143.0kg (315 lbs) and with a seat height of 790mm, it was aimed at standard riders.
The 1975 Yamaha RD350 by contrast offered 347cc of 2-stroke twin power, delivering 39hp at 7500rpm. Tipping the scales at 150.0kg (331 lbs) with a top speed of 165km/h (103 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 1973 Yamaha RD250 from Japan was powered by a 247cc 2-stroke twin producing 30hp at 7500rpm. Weighing 143.0kg (315 lbs) and with a seat height of 790mm, it was aimed at standard riders.
The 1975 Yamaha RD350 by contrast offered 347cc of 2-stroke twin power, delivering 39hp at 7500rpm. Tipping the scales at 150.0kg (331 lbs) with a top speed of 165km/h (103 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
| 1973 Yamaha RD250 | 1975 Yamaha RD350 | |
|---|---|---|
| Displacement | 247 cc | 347 cc |
| Power | 30 hp | 39 hp |
| Torque | 24.0 Nm | 33.0 Nm |
| Cylinders | 2 | 2 |
| Top Speed | 145 km/h | 165 km/h |
| Quarter Mile | — | — |
| Dry Weight | 143.0 kg | 150.0 kg |
| Wet Weight | 155.0 kg | 163.0 kg |
| Seat Height | 790 mm | 790 mm |
| Wheelbase | 1310 mm | 1345 mm |
| Fuel Capacity | 12.0 L | 13.0 L |
| Gears | 6 -speed | 6 -speed |
The Verdict
Comparing these two Yamaha machines reveals the brand's evolution. The 1973 Yamaha RD250 laid the groundwork with 30hp, while the later 1975 Yamaha RD350 pushed output to 39hp. From a collector's perspective, the 1975 Yamaha RD350 holds the edge with a 7/10 rating. Either way, both are worthy additions to any Yamaha collection.
About the 1973 Yamaha RD250
Born in 1973, the 1973 Yamaha RD250 is a 247cc twin-cylinder standard motorcycle producing 30hp from Yamaha.
Full 1973 Yamaha RD250 Profile →About the 1975 Yamaha RD350
Yamaha released the 1975 Yamaha RD350 in 1975 with a 347cc 2-stroke twin powerplant making 39hp — a definitive standard motorcycle.
Full 1975 Yamaha RD350 Profile →