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Norton Dominator 99 SS
1958
1958
The 1958 Norton Dominator 99 SS represents a high point in British motorcycle engineering of the era. Building upon the already successful Dominator line, the 99 SS offered enhanced performance and styling. In a market fiercely contested by manufacturers like Triumph and BSA, the Dominator 99 SS went head-to-head with models such as the Triumph Bonneville T120, seeking to attract riders with its refined handling and powerful twin-cylinder engine.
At the heart of the Dominator 99 SS lies its 596.0 ccm (36.37 cubic inches) parallel-twin engine. This powerplant allowed the motorcycle to reach a top speed of 163.0 km/h (101.3 mph) in its day, making it a formidable machine. With a fuel capacity of 16.00 litres (4.23 US gallons), riders could expect a reasonable range. The motorcycle features a seat height of 787 mm (31.0 inches), allowing a wide range of riders to reach the ground comfortably, adding to the usability of the model.
The riding experience on the 1958 Norton Dominator 99 SS is characterized by its relatively lightweight feel and responsive handling. While not a dedicated sportbike, the motorcycle offers a sporting riding position that encourages spirited riding. The suspension, while basic by modern standards, provides a comfortable ride on smooth roads. Many riders praise the engine's smooth power delivery and the overall balance of the motorcycle.
The Norton Dominator 99 SS would have appealed to riders seeking a stylish and capable motorcycle for weekend rides and touring. This model would have attracted experienced riders who appreciated the engineering and craftsmanship of British motorcycles. Today, the 1958 Norton Dominator 99 SS is a sought-after classic, valued by collectors and enthusiasts who appreciate its historical significance and unique riding experience. It offers a glimpse into a golden age of motorcycle manufacturing.
✅ Why buy this bike?
• Exceptional handling due to the Featherbed frame, providing superior stability and cornering compared to contemporaries. • Strong engine performance from the 600cc parallel twin, offering brisk acceleration and a respectable top speed for its era. • Relatively lightweight construction enhances agility and responsiveness, making it enjoyable on twisty roads. • Stylish and classic British motorcycle design, with a distinctive appearance that appeals to enthusiasts of vintage bikes. • Good availability of spare parts and knowledgeable support from the vintage Norton community facilitates maintenance and restoration. • The 'SS' designation indicates a higher state of tune, with improved carburation and exhaust for increased power output.⚠️ Things to consider
• Lucas electrical system can be unreliable, prone to charging issues and requiring frequent maintenance. • Vibration from the parallel twin engine can be significant, leading to rider fatigue on longer journeys. • Drum brakes offer limited stopping power compared to modern disc brakes, demanding careful riding and anticipation. • Original Amal carburetors can be finicky and require regular adjustment for optimal performance. • The riding position, while sporty, may not be comfortable for all riders, especially on extended trips.Rule of thumb: under 125cc / 15HP → A1, under 47HP → A2, above → A.
Estimated average for 596cc class: 45-60 mpg (4.0-5.5 L/100km)
⛽ Tank: 16.00 litres (4.23 US gallons)
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