| MODEL | NORTON DOMINATOR 99 1956 - 1962 |
| Year | 1956 - 1962 |
| Engine Type | Four-stroke parallel twin, OHV |
| Displacement / Capacity | 596 cc / 36.4 cu in |
| Bore X Stroke | 68 x 82 mm |
| Compression Ratio | — |
| Cooling System | Air cooled |
| Max Power | 31 hp |
| Max Torque | — |
| Ignition | Alternator / coil ignition (from 1958) |
| Induction | — |
| Start System | — |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | — |
| Clutch | — |
| Final Drive | — |
| CHASSIS SPECS | |
| Frame | Featherbed duplex cradle |
| Front Suspension | — |
| Rear Suspension | — |
| Front Brakes | Drum |
| Rear Brakes | Drum |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | — |
| Wheelbase | — |
| Ground Clearance | — |
| Dry Weight | — |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | — |
| Rear Tyre | — |
| FUEL SYSTEM | |
| Fuel Capacity | — |
| Fuel Consumption | — |
| Top Speed | About 100 mph / 161 km/h |
The Dominator 99 was the 600 cc big brother of the 88, sharing its Featherbed frame. It gained an alloy cylinder head, full-width hubs and later coil-ignition electrics as the 1950s went on, and could just exceed 100 mph.
