The 1972 Honda SL350 from Japan was powered by a 325cc SOHC twin producing 33hp at 9500rpm. Weighing 149.0kg (328 lbs) and with a seat height of 830mm, it was aimed at enduro riders.
The 1975 Honda CB400F Super Sport by contrast offered 408cc of SOHC inline-4 power, delivering 37hp at 8500rpm. Tipping the scales at 174.0kg (384 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
| 1972 Honda SL350 | 1975 Honda CB400F Super Sport | |
|---|---|---|
| Displacement | 325 cc | 408 cc |
| Power | 33 hp | 37 hp |
| Torque | 27.0 Nm | 32.0 Nm |
| Cylinders | 2 | 4 |
| Top Speed | 140 km/h | 165 km/h |
| Quarter Mile | — | — |
| Dry Weight | 149.0 kg | 174.0 kg |
| Wet Weight | 163.0 kg | 189.0 kg |
| Seat Height | 830 mm | 790 mm |
| Wheelbase | 1350 mm | 1375 mm |
| Fuel Capacity | 10.5 L | 13.0 L |
| Gears | 5 -speed | 6 -speed |
The Verdict
Comparing these two Honda machines reveals the brand's evolution. The 1972 Honda SL350 laid the groundwork with 33hp, while the later 1975 Honda CB400F Super Sport pushed output to 37hp. From a collector's perspective, the 1975 Honda CB400F Super Sport holds the edge with a 8/10 rating. Either way, both are worthy additions to any Honda collection. Parts availability is moderate for the 1972 Honda SL350 and good for the 1975 Honda CB400F Super Sport — an important factor for any restoration project.
About the 1972 Honda SL350
The 1972 1972 Honda SL350 is a 325cc twin-cylinder dual-sport that became one of Honda's most memorable motorcycles of the 1970s.
Full 1972 Honda SL350 Profile →About the 1975 Honda CB400F Super Sport
Born in 1975, the 1975 Honda CB400F Super Sport is a 408cc four-cylinder standard motorcycle producing 37hp from Honda.
Full 1975 Honda CB400F Super Sport Profile →