Sportbikes
2021Kawasaki Ninja 650
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The 2021 Kawasaki Ninja 650 is an accessible middleweight sport bike ideal for new and intermediate riders seeking a balance of agility and manageable power. Its 649cc parallel-twin engine delivers 67.3 horsepower with responsive handling, making it perfect for both street riding and track days. Known for reliability and affordability, it's a popular entry point into the sport bike category.
- Capacity
- 649.0 ccm
- Engine
- Parallel Twin, four-stroke
- Gearbox
- 6-speed
- Dry weight
- 178.0 kg
- Seat height
- 790 mm
- Power
- 67.3 HP (50.2 kW) @ 8000 RPM
What’s new for the 2021 Kawasaki Ninja 650
vs the 2020| Spec | 2020 | 2021 |
|---|---|---|
| Seat height | 805 mm (31.7 inches) | 790 mm (31.1 inches) |
| Fuel capacity | 16.00 litres (4.23 US gallons) | 15.10 litres (3.99 US gallons) |
| Front brakes | Double disc. Petal discs and two-piston calipers. ABS. | Double disc. Petal discs and two-piston calipers. Optional ABS. |
| Rear brakes | Single disc. Petal disc and single piston caliper. ABS. | Single disc. Petal disc and single piston caliper. Optional ABS. |
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Sport bike built for its class - everyday, practical use.
- Built for
- A sport bike from Kawasaki, built around a 649cc engine - a real production model, but this profile is formula-generated from its class and spec sheet rather than individually reviewed.
- Not ideal for
- Not for serious performance or off-road use.
Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.
Will it fit you?
Worked out in your browser - nothing is sent to usEngine
- Capacity
- 649.0 ccm
- Power
- 67.3 HP (50.2 kW) @ 8000 RPM
- CO2 Emissions
- 95 CO2 g/km
- EPA Certificate No.
- MKAXC.649AAG-004
- EPA Est. Fuel Consumption
- 4.05 L/100km (58.1 US mpg)
- EPA CO Emissions
- 1.1 CO g/km
- Torque
- 56.0 Nm (5.7 kgf-m) @ 4000 RPM
- Engine type
- Parallel Twin, four-stroke
- Power/weight ratio
- 0.3781 HP/kg (dry)
- Bore x stroke
- 83.0 x 60.0 mm
- Compression
- 10.8:1
- Cooling system
- Liquid
- Fuel system
- Injection
- Starting
- Electric
- Ignition
- TCBI with digital advance
- Aspiration
- Naturally aspirated
- Valves per cylinder
- 4
- Lubrication system
- Forced lubrication, semi-dry sump
Transmission
- Gearbox
- 6-speed
- Transmission type
- Manual
- Final drive
- Chain
- Clutch
- Assist and Slipper Clutch
Dimensions & weight
- Wheelbase
- 1410 mm
- Overall length
- 2055 mm
- Overall width
- 739 mm
- Overall height
- 1146 mm
- Seat height
- 790 mm
- Dry weight
- 178.0 kg
- Wet weight
- 192.1 kg
- Fuel capacity
- 15.10 litres
- Ground clearance
- 130 mm
Chassis & suspension
- Frame
- Trellis, high-tensile steel
- Front suspension
- 41mm hydraulic telescopic fork
- Rear suspension
- Horizontal back-link with adjustable spring preload
- Front wheel travel
- 124 mm
- Rear wheel travel
- 130 mm
- Rake (fork angle)
- 24.0°
- Trail
- 99 mm
Brakes & wheels
- Front brakes
- Double disc. Petal discs and two-piston calipers. Optional ABS.
- Front brakes diameter
- 300 mm
- Rear brakes
- Single disc. Petal disc and single piston caliper. Optional ABS.
- Rear brakes diameter
- 220 mm
- ABS
- Optional
- Front tyre
- 120/70-17
- Rear tyre
- 160/60-17
Other
- Color options
- Metallic Spark Black/Pearl Nightshade Teal, Metallic Spark Black/Metallic Imperial Red, Metallic Graphite Gray/Metallic Spark Black
- Warranty
- 12
- Comments
- Economical Riding Indicator
- Fuel Tank Material
- Metal
Specs last verified against published sources: .
Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.
What changed, year to year
Differences highlighted| Specification | 2012 | 2016 | 2020 | 2021 | 2023 | 2027 |
|---|---|---|---|---|---|---|
| Capacity | 649 cc | 649 cc | 649 cc | 649 cc | 649 cc | 649 cc |
| Dry weight | 178 kg | 178 kg | 178 kg | 178 kg | 178 kg | 178 kg |
| Seat height | 805 mm | 805 mm | 805 mm | 790 mm | 790 mm | 785 mm |
| Fuel capacity | 15.9 L | 16 L | 16 L | 15.1 L | 15.1 L | 15 L |
Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.
Rider Reviews
Common questions
What is the engine size of the Kawasaki Ninja 650?
The 2021 Kawasaki Ninja 650 has a Capacity of 649.0 ccm (39.60 cubic inches).
What engine power does the Kawasaki Ninja 650 have?
The 2021 Kawasaki Ninja 650 has a Power of 67.3 HP (50.2 kW) @ 8000 RPM.
How many gears does the Kawasaki Ninja 650 have?
The 2021 Kawasaki Ninja 650 has a Gearbox of 6-speed.
What is the torque of the Kawasaki Ninja 650?
The 2021 Kawasaki Ninja 650 has a Torque of 56.0 Nm (5.7 kgf-m or 41.3 ft.lbs) @ 4000 RPM.
How much does the Kawasaki Ninja 650 weigh?
The 2021 Kawasaki Ninja 650 has a Dry weight of 178.0 kg (392.4 pounds).
Shop this bike
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The 2021 Kawasaki Ninja 650 is a stylish and powerful motorcycle that delivers an exhilarating riding experience. With its 649cc parallel-twin engine, this bike offers impressive acceleration and a smooth, responsive throttle. The slim and lightweight design makes it easy to handle, while the comfortable seating position allows for long rides without discomfort. The Ninja 650 also comes equipped with advanced features such as ABS braking, a digital display, and optional smartphone connectivity, making it a modern and high-tech choice for riders.
Overall, the 2021 Kawasaki Ninja 650 is a fantastic option for riders looking for a thrilling and reliable motorcycle. Whether you're a seasoned rider or a beginner, this bike offers a perfect balance of performance, comfort, and style. With its sleek design and advanced features, the Ninja 650 is sure to turn heads on the road. If you're in the market for a versatile and fun-to-ride motorcycle, the 2021 Kawasaki Ninja 650 is definitely worth considering.
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