At the heart of the 2003 Kawasaki ZX 6 RR sport motorcycle, Kawasaki relies on a 599 cc (36.6 cu in) in-line four, four-stroke powerplant. In factory specification, peak output is rated at 111 HP (81 kW) at 13,200 rpm while maximum torque reaches 64.4 Nm (47.5 lb-ft) at 12,000 rpm. With a specific output of 185.3 HP per liter and a 1,200 rpm working window between peak torque (12,000 rpm) and peak power (13,200 rpm), the engine character is placing it firmly in high-revving supersport territory where top-end breathing dominates.
On the scales, the ZX 6 RR measures 161 kg (355 lbs) dry, translating to a power-to-weight ratio of 0.69 HP/kg (1.45 kg per horsepower). Rider ergonomics and chassis geometry center around a 825 mm (32.5 in) seat height — resulting in a taller command-style riding posture suited to medium-to-tall inseams, combined with a 1,400 mm (55.1 in) wheelbase engineered for quick, flickable steering geometry. The 18-liter (4.8 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Specific Output
185.3 HP/L
Power-to-Weight
0.69 HP/kg (1.45 kg/HP)
Power Band Window
12,000–13,200 rpm
Standover Height
825 mm (32.5 in)
Engine
Displacement599.0 ccm (36.55 cubic inches)
Engine TypeIn-line four, four-stroke
Engine DetailsIn-line four, four-stroke
Power111.0 HP (81.0 kW)) @ 13200 RPM
Torque64.4 Nm (6.6 kgf-m or 47.5 ft.lbs) @ 12000 RPM
Fuel ControlDouble Overhead Cams/Twin Cam (DOHC)
Chassis
Wheelbase1400 mm (55.1 inches)
Dimensions & Weight
Dry Weight161.0 kg (354.9 pounds)
Power/Weight0.6894 HP/kg
Seat Height825 mm (32.5 inches) If adjustable, lowest setting.
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.
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.
