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.
Specifications
Engine
- Type
- OHV twin
- Displacement
- 597 cc
- Cylinders
- 2
- Power
- 31 hp @ 6000 rpm
- Torque
- 40.0 Nm
- Compression
- —
- Bore × Stroke
- 68.0 × 82.0 mm
- Cooling
- Air-cooled
- Fuel System
- Amal carburetor
Chassis & Transmission
- Frame
- Steel featherbed
- Front Suspension
- Telescopic fork
- Rear Suspension
- Twin shock
- Front Brake
- Drum
- Rear Brake
- Drum
- Front Tyre
- —
- Rear Tyre
- —
- Transmission
- 4-speed
- Final Drive
- Chain
Performance
- Top Speed
- 155 km/h (96 mph)
- ¼ Mile
- —
Dimensions & Weight
- Dry Weight
- 182 kg (401 lbs)
- Wet Weight
- 195 kg (430 lbs)
- Seat Height
- 790 mm
- Wheelbase
- 1400 mm
- Ground Clearance
- —
- Fuel Capacity
- 14.0 L
History & Story
The 1958 1958 Norton Dominator 99 was introduced by Norton as a standard motorcycle aimed at riders seeking standard motorcycle performance and style. Manufactured in United Kingdom, it represented Norton's vision for the twin-cylinder standard motorcycle market during the 1950s.
Powering the 1958 Norton Dominator 99 is a 597cc OHV twin producing 31hp. This twin-cylinder engine uses air-cooled cooling and draws fuel through Amal carburetor. A 4-speed gearbox sends power via chain final drive to the rear wheel.
Weighing 182 kg (401 lbs) dry, the 1958 Norton Dominator 99 uses a steel featherbed frame, telescopic fork front suspension, and twin shock rear suspension. The braking system comprises drum front and drum rear units.
Performance-wise, the 1958 Norton Dominator 99 achieves a claimed top speed of 155 km/h (96 mph). With a fuel capacity of 14.0 liters, it offers reasonable range for standard motorcycle duties. The seat height of 790 mm makes it comfortable for most riders.
Powering the 1958 Norton Dominator 99 is a 597cc OHV twin producing 31hp. This twin-cylinder engine uses air-cooled cooling and draws fuel through Amal carburetor. A 4-speed gearbox sends power via chain final drive to the rear wheel.
Weighing 182 kg (401 lbs) dry, the 1958 Norton Dominator 99 uses a steel featherbed frame, telescopic fork front suspension, and twin shock rear suspension. The braking system comprises drum front and drum rear units.
Performance-wise, the 1958 Norton Dominator 99 achieves a claimed top speed of 155 km/h (96 mph). With a fuel capacity of 14.0 liters, it offers reasonable range for standard motorcycle duties. The seat height of 790 mm makes it comfortable for most riders.
Known Issues
- Isolastic mounting rubber bushings wear
- Oil leaks from numerous gasket surfaces
- Lucas electrics need attention
- Gearbox mainshaft bearing wear
- Period-correct fasteners and hardware hard to find
Fun Facts
- The 1958 Norton Dominator 99 was produced in Norton's United Kingdom facilities
- The 1958 Norton Dominator 99 featured a steel featherbed frame typical of 1950s design philosophy
Collector Information
- Parts Availability
- Moderate
- Collector Rating
- 6/10
Resources & Parts
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