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MotoLibrary Score
76/100High Performance
Power/Weight
1.12 hp/kg
Torque
130 Nm
Engine
1200 ccm
Technical Overview
2021 Norton V4 SS Technical Analysis & Specification Breakdown
Positioned in Norton's sport motorcycle lineup, the 2021 Norton V4 SS utilizes a 1200 cc (73.2 cu in) liquid-cooled v4, four-stroke layout. In factory specification, peak output is rated at 200 HP (146 kW) at 12,500 rpm while maximum torque reaches 130 Nm (95.9 lb-ft) at 10,000 rpm, transferring power to the rear wheel through chain final drive. With a specific output of 166.7 HP per liter and a 2,500 rpm working window between peak torque (10,000 rpm) and peak power (12,500 rpm), the engine character is placing it firmly in high-revving supersport territory where top-end breathing dominates.
On the scales, the V4 SS measures 179 kg (395 lbs) dry, translating to a power-to-weight ratio of 1.12 HP/kg (0.9 kg per horsepower). Rider ergonomics and chassis geometry center around a 1,430 mm (56.3 in) wheelbase engineered for balanced agility and highway composure. The 18-liter (4.8 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Torque130.0 Nm (13.3 kgf-m or 95.9 ft.lbs) @ 10000 RPM
Compression13.6:1
Bore x Stroke82.0 x 56.8 mm (3.2 x 2.2 inches)
Valves/Cylinder4
Fuel SystemInjection. Electronic fuel-injection system. Constantly variable inlet tracts. 8-fuel injectors. Full drive-by-wire system independent of front and rear banks of cylinders for ultimate control and feel.
CoolingLiquid
Transmission
Final DriveChain (final drive)
ClutchSlipper clutch
Performance
Emission DetailsEuro 4
Chassis
Frame TypeAluminium twin tube shotgun chassis
Rake23.9°
Front SuspensionOhlins NIX30 system front fork. Fully-adjustable rear suspension
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.
Torque
Torque is useful for judging real-world pull, especially for touring, commuting and loaded riding.
Weight
Compare weight carefully because it affects low-speed handling, parking and confidence.
Fuel Capacity
Fuel capacity helps estimate touring range and how often you may need to stop.
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.
