Norton Dominator 99SS: history, specs, pictures

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Norton Dominator 99SS
Manufacturer
Production 1956 - 1962
Engine
twin, four-stroke
Bore / Stroke 68.0mm x 82.0mm
Top Speed 101 mph (163 km/h)
Horsepower 30.31 HP (22.6 KW) @ 6500RPM
Fuel System carburetor
Ignition coil
Transmission Final Drive: chain
Suspension Front: telescopic
Rear: swingarm -two plungers
Brakes Front: expanding brake (drum brake)
Rear: expanding brake (drum brake)
Wheelbase 55.51 inches (1410 mm)
Seat Height 30.98 inches (787 mm)
Weight
Fuel Capacity 4.23 Gallon (16.00 Liters)
Manuals Service Manual


The Norton Dominator 99SS was a twin, four-stroke standard produced by Norton between 1956 and 1962. It could reach a top speed of 101 mph (163 km/h). Claimed horsepower was 30.31 HP (22.6 KW) @ 6500 RPM.

Engine[edit | edit source]

A 68.0mm bore x 82.0mm stroke result in a displacement of just 596.0 cubic centimeters. Fuel was supplied via a overhead valves (ohv).

Chassis[edit | edit source]

Stopping was achieved via expanding brake (drum brake) in the front and a expanding brake (drum brake) in the rear. The front suspension was a telescopic while the rear was equipped with a swingarm -two plungers. The Dominator 99SS was fitted with a 4.23 Gallon (16.00 Liters) fuel tank. The wheelbase was 55.51 inches (1410 mm) long.