These are the known mechanical and performance specifications for your 2009 Norton Commando 961 SS.
Basic Specs

Engine
Displacement961.00 ccm (58.64 cubic inches)
Type
DetailsTwin, four-stroke
Max RPM
Compression10.1:1
Bore/Stroke88.0 x 79.0 mm (3.5 x 3.1 inches)
Valves/Cylinder2
FuelingCarburettor. Twin 39mm Keihin FCR
IgnitionCrank fired electronic
Exhaust1 3/4 inch header system with merged collector and twin mufflers with catalytic converters.
LubricationDry sump
CoolingAir
Performance
Horespower80.00 HP (58.4 kW)
Torque88.14 Nm (9.0 kgf-m or 65.0 ft.lbs)
Top Speed
Fuel Economy & Polution
Fuel Consumption
Fuel Capacity17.03 litres (4.50 gallons)
Emissions
Chassis
Frame Type4130 chromoly steel
Rake24.5°
Trail102 mm (4.0 inches)
Front Suspension43mm Ohlins RSU - Adjustable preload, compression, and rebound damping.
Front Travel140 mm (5.5 inches)
Rear SuspensionOhlins reservoir-style twin shocks - Adjstable ride height, preload, compression, and rebound damping.
Rear Travel102 mm (4.0 inches)
Seat
Seat Height813 mm (32.0 inches) If adjustable, lowest setting.
Alt. Seat Height
Total Height
Total Length
Total Width
Ground Clearance
Wheelbase1,435 mm (56.5 inches)
Dry Weight188.2 kg (415.0 pounds)
Wet Weight
Wheels & Brakes
Front Tire/Tyre120/70-X17
Rear Tire/Tyre180/55-X17
Front BrakesSingle disc. Bremo
Front Brake Diameter320 mm (12.6 inches)
Rear BrakesSingle disc. Bremo
Rear Brake Diameter220 mm (8.7 inches)
Wheels
Comments
Carbon fiber wheels.