Norton Dominator 99 SS Make Model. | Norton Dominator 99 SS | Year | 1956 - 62 | Engine | 4-Stroke, parallel twin cylinder, OHV | Capacity | 596 cc / 36.4 cu in | Bore and Stroke | 68 x 82 mm | Compression Ratio | 7.4:1 | Cooling System | Air cooled | Exhaust | Two into two, chrome | Induction | Amal 376 carburetor | Ignition | Coil | Starting | Kick | Maximum Power | 23.1 kW / 31 hp @ 6500 rpm | Transmission | 4-Speed | Final Drive | Chain | Frame | Single down-tube | Front Suspension | Telescopic fork | Rear Suspension | Swingarm with twin plungers | Wheels | Polished steel, laced spokes | Dry Weight | 179 kg / 395 lbs | Top Speed | 163 km/h / 101 mph | |