Kawasaki Ninja 1000SX Performance - 2021 Specifications and Reviews

The 2021 Kawasaki Ninja 1000SX Performance is a versatile sport tourer built for riders seeking real-world performance and comfort on longer journeys. Its 1043cc inline-four engine delivers 140 horsepower with strong mid-range torque, making it equally at home carving mountain roads or cruising highways. Known for its balanced blend of aggressive styling, practical ergonomics, and dependable engineering, it appeals to experienced riders wanting sport bike capability without sacrificing usability.

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General information

CategorySport
Year2021
ModelKawasaki Ninja 1000SX Performance
 
 

Engine and Transmission Specifications

DrivelineSealed Chain
ClutchWet multi-disc, manual
Transmission typeChain   (final drive)
Gearbox6-speed
Cooling systemLiquid
Lubrication systemForced lubrication, wet sump with oil cooler
IgnitionTCBI with digital advance
Fuel controlDouble Overhead Cams/Twin Cam (DOHC)
Fuel systemInjection. DFI w/38mm Keihin throttle bodies (4) and oval sub-throttles
Valves per Cylinder4
Bore x Stroke77.0 x 56.0 mm (3.0 x 2.2 inches)
Compression11.8:1
Torque111.0 Nm (11.3 kgf-m or 81.9 ft.lbs) @ 8000 RPM
Power140.1 HP (102.3 kW) @ 10000 RPM
Engine typeIn-line four, four-stroke
Capacity:1043.0 ccm (63.64 cubic inches)
 
 

Brakes, suspension, Frame and wheels

Rear brakesSingle disc. ABS. Single-piston caliper.
Diameter300 mm (11.8 inches)
Front brakesDouble disc. ABS. Four-piston calipers. Radially mounted.
Rear tire190/50-ZR17
Front tire120/70-ZR17
Rear wheel travel144 mm (5.7 inches)
Rear SuspensionHorizontal monoshock with stepless rebound damping, remotely adjustable spring preload/5.4 in
Front wheel travel119 mm (4.7 inches)
Front Suspension41mm inverted cartridge fork with stepless compression and rebound damping, adjustable spring preload/4.7 in
Trail99 mm (3.9 inches)
Rake (fork angle)24.0°
Frame typeTwin-tube, aluminium

Physical measures and capacities

Fuel capacity17.00 litres (4.49 US gallons)
Wheelbase1440 mm (56.7 inches)
Ground clearance135 mm (5.3 inches)
Overall width825 mm (32.5 inches)
Overall length2100 mm (82.7 inches)
Overall height1190 mm (46.9 inches)
Seat height835 mm (32.9 inches) If adjustable, lowest setting.
Weight incl. oil, gas, etc235.0 kg (518.1 pounds)

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
Factory warranty12 Month Limited Warranty
StarterElectric
Color optionsMetallic Carbon Grey/Metallic Diablo Black, Metallic Moondust Grey/Metallic Diablo Black, Emerald Blazed Green/Matallic Diablo Black/Metallic Graphite Grey Dollars

Performance Profile & Rider Fit

142 hp
Peak Power
3.1s
0-60 mph

Best For

Track65%
City62%
Cornering85%
Daily Riding75%
Touring85%
Passenger78%

Rider Profile

Best ForBest suited to intermediate and experienced riders who can confidently manage a powerful, quick-revving inline-four.
PurposeDesigned as a sport-touring machine that blends fast, engaging performance with the comfort and electronics needed for longer rides.
Rider FitThe 835mm seat height and 235kg weight are manageable for most average-to-taller riders but may feel substantial for shorter or less experienced riders at low speed.
CharacterA refined, muscular sport-tourer that rewards confident throttle use with strong midrange punch and stable high-speed manners.
Not Ideal ForNot a good fit for off-road use, absolute beginners, or riders wanting a lightweight, minimalist naked-bike feel.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.

Rider Fit Visualizer

2021 Kawasaki Ninja 1000SX Performance Rider Ergonomics Assessment

Calculated in your browser only - your height/inseam are never sent to our servers.

Feet:

At 835mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with balls of both feet on the 2021 Kawasaki Ninja 1000SX Performance, with a cramped knee angle of around 75 degrees and a forward-leaning riding position.

Data quality: measured. Assumes about 30mm of suspension sag once seated (a typical street-bike rule of thumb - stiffer or softer suspension will vary). This is an approximation from category-typical geometry and generic body proportions, not a measurement of this specific bike or you - sit on it before you buy.

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Rider Reviews

Total comments: 1
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MotorcycleDB Review

The 2021 Kawasaki Ninja 1000SX Performance motorcycle is a powerful and versatile bike that offers a thrilling riding experience. With its 1,043cc engine, the Ninja 1000SX delivers impressive performance and acceleration, making it a top choice for motorcycle enthusiasts. The bike also features a comfortable riding position and advanced electronics, including Kawasaki's intelligent anti-lock braking system and traction control, offering added confidence and control on the road. Whether you're cruising on the highway or carving through twisty mountain roads, the Ninja 1000SX delivers a smooth and exhilarating ride. Overall, the 2021 Kawasaki Ninja 1000SX Performance motorcycle is a top contender in the sport touring category, offering a blend of power, performance, and comfort. With its modern features and advanced technology, this bike is a great option for riders looking for a thrilling and practical motorcycle. Whether you're a seasoned rider or new to the sport, the Ninja 1000SX is sure to impress with its versatility and agility on the road. If you're in the market for a high-performance sport touring bike, the 2021 Kawasaki Ninja 1000SX is definitely worth considering.
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