These are the known mechanical and performance specifications for your 2011 Kawasaki Ninja 400R.
Basic Specs

Engine
Displacement399.00 ccm (24.35 cubic inches)
Type
DetailsTwin, four-stroke
Max RPM
Compression
Bore/Stroke
Valves/Cylinder4
FuelingInjection
IgnitionTCBI with electronic advance
Exhaust
Lubrication
CoolingLiquid
Fuel Economy & Polution
Fuel Consumption
Fuel Capacity15.52 litres (4.10 gallons)
Emissions
Chassis
Frame TypeSemi-double cradle, high-tensile steel
Rake
Trail
Front Suspension41mm hydraulic telescopic fork / 4.7 in.
Front Travel
Rear SuspensionSingle offset laydown shock with adjustable spring preload / 4.9 in.
Rear Travel
Seat
Seat Height790 mm (31.1 inches) If adjustable, lowest setting.
Alt. Seat Height
Total Height1,199 mm (47.2 inches)
Total Length2,101 mm (82.7 inches)
Total Width759 mm (29.9 inches)
Ground Clearance
Wheelbase1,410 mm (55.5 inches)
Dry Weight
Wet Weight203.0 kg (447.5 pounds)
Wheels & Brakes
Front Tire/Tyre120/70-17
Rear Tire/Tyre160/60-17
Front BrakesDouble disc. Optional ABS
Front Brake Diameter
Rear BrakesSingle disc
Rear Brake Diameter
Wheels
Comments
Sold in Japan