2025 Kawasaki Z900RS SE Technical Analysis & Specification Breakdown
Built around Kawasaki's classic motorcycle platform, the 2025 Kawasaki Z900RS SE utilizes a 948 cc (57.9 cu in) liquid-cooled in-line four, four-stroke layout. In factory specification, peak output is rated at 110 HP (80.3 kW) at 8,500 rpm while maximum torque reaches 98 Nm (72.3 lb-ft) at 6,500 rpm, transferring power to the rear wheel through a 6-speed gearbox and chain final drive. With a specific output of 116 HP per liter and a 2,000 rpm working window between peak torque (6,500 rpm) and peak power (8,500 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 Z900RS SE measures 215 kg (474 lbs) wet (curb), translating to a power-to-weight ratio of 0.51 HP/kg (1.95 kg per horsepower). Rider ergonomics and chassis geometry center around a 845 mm (33.3 in) seat height — resulting in a taller command-style riding posture suited to medium-to-tall inseams, combined with a 1,470 mm (57.9 in) wheelbase engineered for balanced agility and highway composure. The 17.03-liter (4.5 US gal) fuel tank paired with a rated consumption of 5.2 L/100 km provides an estimated theoretical range of roughly 328 km (204 miles) between fill-ups.
Within MotoLibrary's Kawasaki archive, this model family spans 3 indexed model years from 2022 to 2025, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Specific Output
116 HP/L
Power-to-Weight
0.51 HP/kg (1.95 kg/HP)
Power Band Window
6,500–8,500 rpm
Theoretical Range
~328 km (204 mi)
Engine
Displacement948.0 ccm (57.85 cubic inches)
Engine TypeIn-line four, four-stroke
Power110.0 HP (80.3 kW)) @ 8500 RPM
Torque98.0 Nm (10.0 kgf-m or 72.3 ft.lbs) @ 6500 RPM
Compression10.8:1
Bore x Stroke73.4 x 56.0 mm (2.9 x 2.2 inches)
Valves/Cylinder4
Fuel SystemInjection. DFI with 36mm Keihin throttle bodies
Fuel ControlDouble Overhead Cams/Twin Cam (DOHC)
LubricationForced lubrication, wet sump
CoolingLiquid
Transmission
Gearbox6-speed
Final DriveChain (final drive)
ClutchWet multi-disc, manual
DrivelineSealed chain
Performance
Fuel Consumption5.20 litres/100 km (19.2 km/l or 45.23 mpg)
Greenhouse Gases120.6 CO2 g/km. (CO2 - Carbon dioxide emission)
ExhaustTuned stainless steel exhaust
Chassis
Frame TypeTrellis, high tensile steel
Rake25.0°
Trail98 mm (3.9 inches)
Front Suspension41 mm inverted fork with compression and rebound damping and spring preload adjustability
Front Travel120 mm (4.7 inches)
Rear SuspensionHorizontal Back-link, gas-charged shock with rebound damping and spring preload adjustability
Rear Travel140 mm (5.5 inches)
Wheelbase1470 mm (57.9 inches)
Ground Clearance140 mm (5.5 inches)
Wheels & Brakes
Front Tyre120/70-ZR17
Rear Tyre180/55-ZR17
Front BrakesDouble disc. ABS. Four-piston calipers.
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.
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.
