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The 1973 Yamaha TX750 and 1975 Yamaha RD350 represent two chapters in Yamaha's storied history.
The 1973 Yamaha TX750 from Japan was powered by a 743cc DOHC twin producing 63hp at 7500rpm. Weighing 215.0kg (474 lbs) and with a seat height of 810mm, 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 TX750 from Japan was powered by a 743cc DOHC twin producing 63hp at 7500rpm. Weighing 215.0kg (474 lbs) and with a seat height of 810mm, 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 TX750 | 1975 Yamaha RD350 | |
|---|---|---|
| Displacement | 743 cc | 347 cc |
| Power | 63 hp | 39 hp |
| Torque | 60.0 Nm | 33.0 Nm |
| Cylinders | 2 | 2 |
| Top Speed | 185 km/h | 165 km/h |
| Quarter Mile | — | — |
| Dry Weight | 215.0 kg | 150.0 kg |
| Wet Weight | 232.0 kg | 163.0 kg |
| Seat Height | 810 mm | 790 mm |
| Wheelbase | 1450 mm | 1345 mm |
| Fuel Capacity | 14.0 L | 13.0 L |
| Gears | 5 -speed | 6 -speed |
The Verdict
Comparing these two Yamaha machines reveals the brand's evolution. The 1973 Yamaha TX750 laid the groundwork with 63hp, 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 TX750
The 1973 1973 Yamaha TX750 packs a 743cc DOHC twin engine with 63hp into a standard motorcycle package from Yamaha.
Full 1973 Yamaha TX750 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 →