The 1980 Yamaha XJ650 from Japan was powered by a 653cc DOHC inline-4 producing 71hp at 9000rpm. Weighing 215.0kg (474 lbs) and with a seat height of 800mm, it was aimed at standard riders.
The 1983 Triumph T140 TSX, hailing from United Kingdom, by contrast offered 744cc of OHV twin power, delivering 50hp at 6500rpm. Tipping the scales at 188.0kg (414 lbs) with a top speed of 170km/h (106 mph), it offered a distinct riding experience. 1980s motorcycles are the rising stars of the collector market. Early sportbikes and final-generation air-cooled models are gaining strong interest.
Specifications Comparison
| 1980 Yamaha XJ650 | 1983 Triumph T140 TSX | |
|---|---|---|
| Displacement | 653 cc | 744 cc |
| Power | 71 hp | 50 hp |
| Torque | 56.0 Nm | 54.0 Nm |
| Cylinders | 4 | 2 |
| Top Speed | 190 km/h | 170 km/h |
| Quarter Mile | — | — |
| Dry Weight | 215.0 kg | 188.0 kg |
| Wet Weight | 232.0 kg | 202.0 kg |
| Seat Height | 800 mm | 790 mm |
| Wheelbase | 1440 mm | 1410 mm |
| Fuel Capacity | 16.0 L | 14.0 L |
| Gears | 5 -speed | 5 -speed |
The Verdict
For pure standard performance, the 1980 Yamaha XJ650 has the edge thanks to more power (71hp vs 50hp) and a higher top speed. The 1983 Triumph T140 TSX, however, excels when all-round versatility and everyday riding is the priority and offers a lighter package. For collectors, the 1983 Triumph T140 TSX commands more attention with a 5/10 collectibility rating. Parts availability is good for the 1980 Yamaha XJ650 and moderate for the 1983 Triumph T140 TSX — an important factor for any restoration project.
About the 1980 Yamaha XJ650
Born in 1980, the 1980 Yamaha XJ650 is a 653cc four-cylinder standard motorcycle producing 71hp from Yamaha.
Full 1980 Yamaha XJ650 Profile →About the 1983 Triumph T140 TSX
Introduced in 1983, the 1983 Triumph T140 TSX features a 744cc OHV twin engine producing 50hp, establishing itself as a notable standard motorcycle.
Full 1983 Triumph T140 TSX Profile →