Positioned in Kawasaki's sport motorcycle lineup, the 2025 Kawasaki Ninja 1100SX pairs a 1099 cc (67.1 cu in) liquid-cooled in-line four, four-stroke architecture with road-focused gearing. In factory specification, peak output is rated at 134 HP (97.8 kW) at 9,000 rpm while maximum torque reaches 113.5 Nm (83.7 lb-ft) at 7,600 rpm, transferring power to the rear wheel through a 6-speed gearbox and chain final drive. With a specific output of 121.9 HP per liter and a 1,400 rpm working window between peak torque (7,600 rpm) and peak power (9,000 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 Ninja 1100SX measures 235.1 kg (518 lbs) wet (curb), translating to a power-to-weight ratio of 0.57 HP/kg (1.75 kg per horsepower). 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 1,440 mm (56.7 in) wheelbase engineered for balanced agility and highway composure. The 18.93-liter (5 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Specific Output
121.9 HP/L
Power-to-Weight
0.57 HP/kg (1.75 kg/HP)
Power Band Window
7,600–9,000 rpm
Standover Height
820 mm (32.3 in)
Engine
Displacement1099.0 ccm (67.06 cubic inches)
Engine TypeIn-line four, four-stroke
Power134.0 HP (97.8 kW)) @ 9000 RPM
Torque113.5 Nm (11.6 kgf-m or 83.7 ft.lbs) @ 7600 RPM
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.
