Positioned in Kawasaki's naked motorcycle lineup, the 2021 Kawasaki Z900 Performance pairs a 948 cc (57.9 cu in) liquid-cooled in-line four, four-stroke architecture with road-focused gearing. In factory specification, peak output is rated at 123.6 HP (90.2 kW) at 9,500 rpm while maximum torque reaches 98.6 Nm (72.7 lb-ft) at 7,700 rpm, transferring power to the rear wheel through a 6-speed gearbox and chain final drive. With a specific output of 130.4 HP per liter and a 1,800 rpm working window between peak torque (7,700 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 Z900 Performance measures 212 kg (467 lbs) wet (curb), translating to a power-to-weight ratio of 0.58 HP/kg (1.72 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 1,455 mm (57.3 in) wheelbase engineered for balanced agility and highway composure. The 17-liter (4.5 US gal) fuel tank paired with a rated consumption of 5.7 L/100 km provides an estimated theoretical range of roughly 298 km (185 miles) between fill-ups.
Specific Output
130.4 HP/L
Power-to-Weight
0.58 HP/kg (1.72 kg/HP)
Power Band Window
7,700–9,500 rpm
Theoretical Range
~298 km (185 mi)
Engine
Displacement948.0 ccm (57.85 cubic inches)
Engine TypeIn-line four, four-stroke
Power123.6 HP (90.2 kW)) @ 9500 RPM
Torque98.6 Nm (10.1 kgf-m or 72.7 ft.lbs) @ 7700 RPM
Compression11.8:1
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)
IgnitionTCBI with electronic advance
CoolingLiquid
Transmission
Gearbox6-speed
Final DriveChain (final drive)
ClutchWet multi-disc
DrivelineSealed chain
Performance
Fuel Consumption5.70 litres/100 km (17.5 km/l or 41.27 mpg)
Greenhouse Gases132.2 CO2 g/km. (CO2 - Carbon dioxide emission)
Chassis
Frame TypeTrellis, high tensile steel
Rake24.9°
Trail110 mm (4.3 inches)
Front Suspension41mm inverted fork with rebound damping and spring preload adjustability
Front Travel120 mm (4.7 inches)
Rear SuspensionHorizontal back-link, stepless rebound damping, adjustable spring preload
Rear Travel140 mm (5.5 inches)
Wheelbase1455 mm (57.3 inches)
Ground Clearance145 mm (5.7 inches)
Wheels & Brakes
Front Tyre120/70-ZR17
Rear Tyre180/55-ZR17
Front BrakesDouble disc. Optional 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.
