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← Norton
Classic · 2020

Superlight SS

US$ 46666. UK £ 49995. MSRP depends on country, taxes, accessories, etc.
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MotoLibrary Score
71 /100 Sporty
Power/Weight
1.06 hp/kg
Engine
650 ccm

2020 Norton Superlight SS Technical Analysis & Specification Breakdown

At the heart of the 2020 Norton Superlight SS classic motorcycle, Norton features a 650 cc (39.7 cu in) liquid-cooled twin, four-stroke configuration. In factory specification, peak output is rated at 170 HP (124.1 kW), transferring power to the rear wheel through a 4-speed gearbox and chain final drive. With a specific output of 261.5 HP per liter, the engine character is placing it firmly in high-revving supersport territory where top-end breathing dominates.

On the scales, the Superlight SS measures 160 kg (353 lbs) dry, translating to a power-to-weight ratio of 1.06 HP/kg (0.94 kg per horsepower). Rider ergonomics and chassis geometry center around a 924 mm (36.4 in) seat height — reflecting a long-travel chassis stance that favors ground clearance and off-pavement control, combined with a 1,399 mm (55.1 in) wheelbase engineered for quick, flickable steering geometry.

Specific Output
261.5 HP/L
Power-to-Weight
1.06 HP/kg (0.94 kg/HP)
Standover Height
924 mm (36.4 in)
Engine
Displacement 650.0 ccm (39.66 cubic inches)
Engine Type Twin, four-stroke
Power 170.0 HP (124.1 kW))
Bore x Stroke 82.0 x 61.0 mm (3.2 x 2.4 inches)
Fuel System Injection. Rotrex centrifugal Supercharger with Intercooler and patented gear drive system. 1.2 bar boost.
Fuel Control Double Overhead Cams/Twin Cam (DOHC)
Cooling Liquid
Transmission
Gearbox 4-speed
Final Drive Chain (final drive)
Chassis
Frame Type Carbon-fibre
Front Suspension Ohlins NIX 30 system front fork. Fully adjustable.
Rear Suspension Ohlins TTXGP Norton bespoke fully adjustable rear shock.
Wheelbase 1399 mm (55.1 inches)
Wheels & Brakes
Front Brakes Double disc. Full floating Brembo discs. Radially mounted twin Brembo monoblock callipers with ABS. Brembo master cylinder.
Front Brake Ø 330 mm (13.0 inches)
Rear Brakes Single disc. Brembo twin piston rear calliper with ABS. Brembo master cylinder.
Rear Brake Ø 245 mm (9.6 inches)
Wheels Carbon fiber
Dimensions & Weight
Dry Weight 160.0 kg (352.7 pounds)
Power/Weight 1.0625 HP/kg
Seat Height 924 mm (36.4 inches) If adjustable, lowest setting.
Other
Starter Electric
Color Options Black
Notes

Limited edition of 50 bikes.

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Before You Compare This Bike

Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.

Power
Compare engine output with similar motorcycles if acceleration, highway use or two-up riding matters.
Seat Height
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Weight
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Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Suspension
Suspension details can matter for comfort, road feel and long-distance riding.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
Rider Profile

Who Is This Bike For?

🔴
Advanced
High performance — experienced riders only.
🏍️
Best For
General Purpose
📏
Seat Height
92.4 cm / 36.4 in
⚖️
Handling
Manageable weight for most riders
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