The 1958 Norton Dominator 99 from United Kingdom was powered by a 597cc OHV twin producing 31hp at 6000rpm. Weighing 182.0kg (401 lbs) and with a seat height of 790mm, it was aimed at standard riders.
The 1962 Norton Manx 30M by contrast offered 499cc of DOHC single power, delivering 54hp at 7200rpm. Tipping the scales at 136.0kg (300 lbs) with a top speed of 220km/h (137 mph), it offered a distinct riding experience. 1950s bikes represent the golden age of British motorcycling and early Japanese innovation, with well-maintained examples commanding premium prices.
Specifications Comparison
| 1958 Norton Dominator 99 | 1962 Norton Manx 30M | |
|---|---|---|
| Displacement | 597 cc | 499 cc |
| Power | 31 hp | 54 hp |
| Torque | 40.0 Nm | 46.0 Nm |
| Cylinders | 2 | 1 |
| Top Speed | 155 km/h | 220 km/h |
| Quarter Mile | — | — |
| Dry Weight | 182.0 kg | 136.0 kg |
| Wet Weight | 195.0 kg | 146.0 kg |
| Seat Height | 790 mm | 760 mm |
| Wheelbase | 1400 mm | 1370 mm |
| Fuel Capacity | 14.0 L | 14.0 L |
| Gears | 4 -speed | 4 -speed |
The Verdict
Comparing these two Norton machines reveals the brand's evolution. The 1958 Norton Dominator 99 laid the groundwork with 31hp, while the later 1962 Norton Manx 30M pushed output to 54hp. From a collector's perspective, the 1962 Norton Manx 30M holds the edge with a 10/10 rating. Either way, both are worthy additions to any Norton collection. Parts availability is moderate for the 1958 Norton Dominator 99 and very difficult for the 1962 Norton Manx 30M — an important factor for any restoration project.
About the 1958 Norton Dominator 99
Introduced in 1958, the 1958 Norton Dominator 99 features a 597cc OHV twin engine producing 31hp, establishing itself as a notable standard motorcycle.
Full 1958 Norton Dominator 99 Profile →About the 1962 Norton Manx 30M
A racing machine from 1962, the 1962 Norton Manx 30M delivers 54hp from its 499cc DOHC single engine.
Full 1962 Norton Manx 30M Profile →