The 1979 Yamaha XS1100 from Japan was powered by a 1101cc DOHC inline-4 producing 95hp at 8000rpm. Weighing 268.0kg (591 lbs) and with a seat height of 810mm, it was aimed at touring riders.
The 1975 Suzuki RE5 Rotary by contrast offered 497cc of Wankel rotary power, delivering 62hp at 6500rpm. Tipping the scales at 230.0kg (507 lbs) with a top speed of 175km/h (109 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
| 1979 Yamaha XS1100 | 1975 Suzuki RE5 Rotary | |
|---|---|---|
| Displacement | 1101 cc | 497 cc |
| Power | 95 hp | 62 hp |
| Torque | 89.0 Nm | 75.0 Nm |
| Cylinders | 4 | 1 |
| Top Speed | 210 km/h | 175 km/h |
| Quarter Mile | — | — |
| Dry Weight | 268.0 kg | 230.0 kg |
| Wet Weight | 290.0 kg | 250.0 kg |
| Seat Height | 810 mm | 800 mm |
| Wheelbase | 1530 mm | 1485 mm |
| Fuel Capacity | 22.0 L | 17.0 L |
| Gears | 5 -speed | 5 -speed |
The Verdict
For pure touring performance, the 1979 Yamaha XS1100 has the edge thanks to more power (95hp vs 62hp) and a higher top speed. The 1975 Suzuki RE5 Rotary, however, excels when long-distance touring with passenger comfort is the priority and offers a lighter package. For collectors, the 1975 Suzuki RE5 Rotary commands more attention with a 9/10 collectibility rating. Parts availability is moderate for the 1979 Yamaha XS1100 and very difficult for the 1975 Suzuki RE5 Rotary — an important factor for any restoration project.
About the 1979 Yamaha XS1100
Introduced in 1979, the 1979 Yamaha XS1100 features a 1101cc DOHC inline-4 engine producing 95hp, establishing itself as a notable touring motorcycle.
Full 1979 Yamaha XS1100 Profile →About the 1975 Suzuki RE5 Rotary
Introduced in 1975, the 1975 Suzuki RE5 Rotary features a 497cc Wankel rotary engine producing 62hp, establishing itself as a notable touring motorcycle.
Full 1975 Suzuki RE5 Rotary Profile →