Built around Kawasaki's sport motorcycle platform, the 2008 Kawasaki Ninja ZX-6R features a 599 cc (36.6 cu in) air-cooled in-line four, four-stroke configuration. In factory specification, maximum torque reaches 40 Nm (29.5 lb-ft) at 11,500 rpm, transferring power to the rear wheel through a 6-speed gearbox and chain final drive. Internal engine geometry specifies a bore and stroke of 67.0 x 42.5 mm (2.6 x 1.7 inches) with a 13.3:1 compression ratio.
On the scales, the Ninja ZX-6R measures 167 kg (368 lbs) dry. Rider ergonomics and chassis geometry center around a 820 mm (32.3 in) seat height — resulting in a taller command-style riding posture suited to medium-to-tall inseams, combined with a 1,405 mm (55.3 in) wheelbase engineered for quick, flickable steering geometry. The 17.03-liter (4.5 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Within MotoLibrary's Kawasaki archive, this model family spans 16 indexed model years from 2004 to 2025, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Standover Height
820 mm (32.3 in)
Engine
Displacement599.0 ccm (36.55 cubic inches)
Engine TypeIn-line four, four-stroke
Engine DetailsIn-line four, four-stroke
Torque40.0 Nm (4.1 kgf-m or 29.5 ft.lbs) @ 11500 RPM
Compression13.3:1
Bore x Stroke67.0 x 42.5 mm (2.6 x 1.7 inches)
Valves/Cylinder4
Fuel SystemInjection. 25 deg / 4.3 in.
Fuel ControlOverhead Valves (OHV)
IgnitionTCBI with digital advance
CoolingAir
Transmission
Gearbox6-speed
Final DriveChain (final drive)
Chassis
Frame TypeAluminum perimeter
Rake25.0°
Trail109 mm (4.3 inches)
Front Suspension41 mm inverted cartridge fork with top-out springs, stepless rebound damping, stepless compression damping, fully-adjustable spring preload / 4.7 in.
Rear SuspensionBottom-Link Uni-Trak® with gas-charged shock, top-out spring and pillow ball upper mount, dual-range (high/low-speed) stepless compression damping, 25-way adjustable rebound damping, fully-adjustable spring preload / 5.2 in.
Wheelbase1405 mm (55.3 inches)
Wheels & Brakes
Front Tyre120/70-ZR17
Rear Tyre180/55-ZR17
Front BrakesDouble disc
Front Brake Ø300 mm (11.8 inches)
Rear BrakesSingle disc
Rear Brake Ø210 mm (8.3 inches)
Dimensions & Weight
Dry Weight167.0 kg (368.2 pounds)
Seat Height820 mm (32.3 inches) If adjustable, lowest setting.
Fuel Capacity17.03 litres (4.50 US gallons)
Other
Color OptionsLime Green, Candy Plasma Blue, Vivid Yellow, Special Edition: Ebony
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.
Torque
Torque is useful for judging real-world pull, especially for touring, commuting and loaded riding.
Seat Height
Check the seat height against your inseam and riding posture before choosing a motorcycle.
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.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
