VS
The 1966 Kawasaki W1 650 and 1979 Suzuki GS550 both compete in the standard segment, offering riders distinct interpretations of the formula.
The 1966 Kawasaki W1 650 from Japan was powered by a 624cc OHV vertical twin producing 50hp at 7000rpm. Weighing 200.0kg (441 lbs) and with a seat height of 800mm, it was aimed at standard riders.
The 1979 Suzuki GS550 by contrast offered 549cc of DOHC inline-4 power, delivering 50hp at 8500rpm. Tipping the scales at 202.0kg (445 lbs) with a top speed of 175km/h (109 mph), it offered a distinct riding experience. 1960s motorcycles capture the era of cultural revolution and racing heritage. Iconic models from this decade are among the most desirable classics.
The 1966 Kawasaki W1 650 from Japan was powered by a 624cc OHV vertical twin producing 50hp at 7000rpm. Weighing 200.0kg (441 lbs) and with a seat height of 800mm, it was aimed at standard riders.
The 1979 Suzuki GS550 by contrast offered 549cc of DOHC inline-4 power, delivering 50hp at 8500rpm. Tipping the scales at 202.0kg (445 lbs) with a top speed of 175km/h (109 mph), it offered a distinct riding experience. 1960s motorcycles capture the era of cultural revolution and racing heritage. Iconic models from this decade are among the most desirable classics.
Specifications Comparison
| 1966 Kawasaki W1 650 | 1979 Suzuki GS550 | |
|---|---|---|
| Displacement | 624 cc | 549 cc |
| Power | 50 hp | 50 hp |
| Torque | 49.0 Nm | 44.0 Nm |
| Cylinders | 2 | 4 |
| Top Speed | 170 km/h | 175 km/h |
| Quarter Mile | — | — |
| Dry Weight | 200.0 kg | 202.0 kg |
| Wet Weight | 215.0 kg | 218.0 kg |
| Seat Height | 800 mm | 800 mm |
| Wheelbase | 1420 mm | 1410 mm |
| Fuel Capacity | 15.0 L | 15.0 L |
| Gears | 4 -speed | 6 -speed |
The Verdict
These two standards are remarkably well-matched. With 50hp versus 50hp, the performance difference is marginal. The choice between them comes down to brand loyalty, aesthetics, and riding preference. For collectors, the 1966 Kawasaki W1 650 commands more attention with a 6/10 collectibility rating. Parts availability is moderate for the 1966 Kawasaki W1 650 and good for the 1979 Suzuki GS550 — an important factor for any restoration project.
About the 1966 Kawasaki W1 650
Kawasaki released the 1966 Kawasaki W1 650 in 1966 with a 624cc OHV vertical twin powerplant making 50hp — a definitive standard motorcycle.
Full 1966 Kawasaki W1 650 Profile →About the 1979 Suzuki GS550
Introduced in 1979, the 1979 Suzuki GS550 features a 549cc DOHC inline-4 engine producing 50hp, establishing itself as a notable standard motorcycle.
Full 1979 Suzuki GS550 Profile →