Positioned in Kawasaki's allround motorcycle lineup, the 2003 Kawasaki ZR-7S relies on a 738 cc (45 cu in) oil & air-cooled in-line four, four-stroke powerplant. In factory specification, peak output is rated at 75.1 HP (54.8 kW) at 9,500 rpm while maximum torque reaches 63.1 Nm (46.5 lb-ft) at 7,500 rpm, transferring power to the rear wheel through a 5-speed gearbox and chain final drive. With a specific output of 101.8 HP per liter and a 2,000 rpm working window between peak torque (7,500 rpm) and peak power (9,500 rpm), the engine character is reflecting a performance-oriented street tune that balances strong mid-range pull with an energetic top-end rush.
On the scales, the ZR-7S measures 202 kg (445 lbs) dry, translating to a power-to-weight ratio of 0.37 HP/kg (2.69 kg per horsepower). Rider ergonomics and chassis geometry center around a 800 mm (31.5 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance, combined with a 1,455 mm (57.3 in) wheelbase engineered for balanced agility and highway composure. The 22-liter (5.8 US gal) fuel tank paired with a rated consumption of 19.1 L/100 km provides an estimated theoretical range of roughly 115 km (71 miles) between fill-ups, while factory top speed is listed at 212 km/h (132 mph).
Specific Output
101.8 HP/L
Power-to-Weight
0.37 HP/kg (2.69 kg/HP)
Power Band Window
7,500–9,500 rpm
Theoretical Range
~115 km (71 mi)
Engine
Displacement738.0 ccm (45.03 cubic inches)
Engine TypeIn-line four, four-stroke
Engine DetailsIn-line four, four-stroke
Power75.1 HP (54.8 kW)) @ 9500 RPM
Torque63.1 Nm (6.4 kgf-m or 46.5 ft.lbs) @ 7500 RPM
Compression9.5:1
Bore x Stroke66.0 x 54.0 mm (2.6 x 2.1 inches)
Valves/Cylinder2
Fuel SystemCarburettor. 4 x 32 mm CV-Type with K-TRICK
Fuel ControlDouble Overhead Cams/Twin Cam (DOHC)
IgnitionDigital
CoolingOil & air
Transmission
Gearbox5-speed
Final DriveChain (final drive)
Performance
Top Speed212.0 km/h (131.7 mph)
Fuel Consumption19.10 litres/100 km (5.2 km/l or 12.32 mpg)
Greenhouse Gases443.1 CO2 g/km. (CO2 - Carbon dioxide emission)
Chassis
Front Suspension41mm Kayaba shock adjustable for preload/rebound damping
Front Travel130 mm (5.1 inches)
Rear SuspensionBottom link UNI-TRAK with 7-way adjustable preload and 4-way rebound damping
Rear Travel130 mm (5.1 inches)
Wheelbase1455 mm (57.3 inches)
Wheels & Brakes
Front Tyre120/70-17
Rear Tyre160/60-17
Front BrakesDouble disc. Two-piston calipers.
Front Brake Ø300 mm (11.8 inches)
Rear BrakesSingle disc. Two-piston calipers.
Rear Brake Ø240 mm (9.4 inches)
Dimensions & Weight
Dry Weight202.0 kg (445.3 pounds)
Power/Weight0.3718 HP/kg
Seat Height800 mm (31.5 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.
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.
