The 1974 Honda CB550 Four from Japan was powered by a 544cc SOHC inline-4 producing 50hp at 8500rpm. Weighing 195.0kg (430 lbs) and with a seat height of 800mm, it was aimed at standard riders.
The 1972 Kawasaki H2 Mach IV by contrast offered 748cc of 2-stroke triple power, delivering 74hp at 6800rpm. Tipping the scales at 192.0kg (423 lbs) with a top speed of 210km/h (130 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
| 1974 Honda CB550 Four | 1972 Kawasaki H2 Mach IV | |
|---|---|---|
| Displacement | 544 cc | 748 cc |
| Power | 50 hp | 74 hp |
| Torque | 43.0 Nm | 68.0 Nm |
| Cylinders | 4 | 3 |
| Top Speed | 180 km/h | 210 km/h |
| Quarter Mile | — | — |
| Dry Weight | 195.0 kg | 192.0 kg |
| Wet Weight | 211.0 kg | 210.0 kg |
| Seat Height | 800 mm | 810 mm |
| Wheelbase | 1410 mm | 1420 mm |
| Fuel Capacity | 14.0 L | 16.0 L |
| Gears | 5 -speed | 5 -speed |
The Verdict
For pure standard performance, the 1972 Kawasaki H2 Mach IV has the edge thanks to more power (74hp vs 50hp) and a higher top speed and lower weight. The 1974 Honda CB550 Four, however, excels when all-round versatility and everyday riding is the priority. For collectors, the 1972 Kawasaki H2 Mach IV commands more attention with a 9/10 collectibility rating. Parts availability is good for the 1974 Honda CB550 Four and moderate for the 1972 Kawasaki H2 Mach IV — an important factor for any restoration project.
About the 1974 Honda CB550 Four
Honda released the 1974 Honda CB550 Four in 1974 with a 544cc SOHC inline-4 powerplant making 50hp — a definitive standard motorcycle.
Full 1974 Honda CB550 Four Profile →About the 1972 Kawasaki H2 Mach IV
A standard motorcycle from 1972, the 1972 Kawasaki H2 Mach IV delivers 74hp from its 748cc 2-stroke triple engine.
Full 1972 Kawasaki H2 Mach IV Profile →