Naked Motorcycles
2021Kawasaki Z650
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The 2021 Kawasaki Z650 is a lightweight naked bike perfectly suited for beginner and intermediate riders seeking an accessible, manageable machine. Its parallel-twin engine delivers smooth, predictable power with 67 horsepower, making it an excellent platform for learning fundamental riding skills. Known for its approachable ergonomics, reliability, and affordability, the Z650 excels as an entry-level bike that doesn't compromise on character or modern technology.
- Capacity
- 649.0 ccm
- Engine
- Parallel Twin, four-stroke
- Gearbox
- 6-speed
- Dry weight
- 173.0 kg
- Seat height
- 790 mm
- Power
- 67.3 HP (50.2 kW) @ 8000 RPM
What’s new for the 2021 Kawasaki Z650
vs the 2020| Spec | 2020 | 2021 |
|---|---|---|
| Front brakes | Double disc. Petal-type rotors with two-piston calipers | Double disc. Petal-type rotors with two-piston calipers. Optional ABS. |
| Rear brakes | Single disc. Petal disc. Single-piston. | Single disc. Petal disc. Single-piston. Optional ABS. |
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Built as an everyday naked bike for commuting, learning, and spirited weekend rides rather than outright performance or long-distance touring.
- Built for
- A friendly, revvy parallel-twin street bike that rewards playful riding in town and on twisty backroads without being intimidating.
- Not ideal for
- Not the right choice for riders wanting serious highway touring comfort, passenger-friendly long trips, or any genuine off-road capability.
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 usRange and running costs
Worked out in your browser - nothing is sent to usBased on the maker's published fuel consumption and tank size. Real-world figures depend on how and where you ride, and the last litres of a tank are reserve. Prices shown greyed are examples - type your own.
Engine
- 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
- 65.7 Nm (6.7 kgf-m) @ 6500 RPM
- Engine type
- Parallel Twin, four-stroke
- Fuel consumption
- 4.40 litres/100 km (22.7 km/l)
- Power/weight ratio
- 0.3890 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 electronic advance
- Aspiration
- Naturally aspirated
- Valves per cylinder
- 4
- Lubrication system
- Forced lubrication, semi and #8209;dry sump
Transmission
- Gearbox
- 6-speed
- Transmission type
- Manual
- Final drive
- Chain
- Clutch
- Assist and Slipper Clutch
Dimensions & weight
- Wheelbase
- 1410 mm
- Overall length
- 2065 mm
- Overall width
- 765 mm
- Overall height
- 1064 mm
- Seat height
- 790 mm
- Dry weight
- 173.0 kg
- Wet weight
- 187.0 kg
- Fuel capacity
- 15.10 litres
- Ground clearance
- 130 mm
Chassis & suspension
- Frame
- Trellis, high-tensile steel
- Front suspension
- 41 mm telescopic fork
- Rear suspension
- Horizontal Back-link with preload adjustment
- Front wheel travel
- 124 mm
- Rear wheel travel
- 130 mm
- Rake (fork angle)
- 24.0°
- Trail
- 100 mm
Brakes & wheels
- Front brakes
- Double disc. Petal-type rotors with two-piston calipers. Optional ABS.
- Front brakes diameter
- 300 mm
- Rear brakes
- Single disc. Petal disc. Single-piston. Optional ABS.
- Rear brakes diameter
- 220 mm
- ABS
- Optional
- Front tyre
- 120/70-ZR17
- Rear tyre
- 160/60-ZR17
Other
- Color options
- Pearl Blizzard White/Metallic Spark Black, Metallic Spark Black/Metallic Flat Spark Black
- Warranty
- 12
- Comments
- Smartphone Connectivity
- 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 | 2017 | 2019 | 2021 | 2022 | 2024 | 2026 |
|---|---|---|---|---|---|---|
| Capacity | 649 cc | 649 cc | 649 cc | 649 cc | 649 cc | 649 cc |
| Dry weight | 173 kg | 173 kg | 173 kg | 173 kg | 173 kg | 170 kg |
| Seat height | 790 mm | 790 mm | 790 mm | 790 mm | 790 mm | 805 mm |
| Fuel capacity | 15 L | 15 L | 15.1 L | 15.1 L | 15.1 L | 15.1 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 Z650?
The 2021 Kawasaki Z650 has a Capacity of 649.0 ccm (39.60 cubic inches).
What engine power does the Kawasaki Z650 have?
The 2021 Kawasaki Z650 has a Power of 67.3 HP (50.2 kW) @ 8000 RPM.
How many gears does the Kawasaki Z650 have?
The 2021 Kawasaki Z650 has a Gearbox of 6-speed.
What is the torque of the Kawasaki Z650?
The 2021 Kawasaki Z650 has a Torque of 65.7 Nm (6.7 kgf-m or 48.5 ft.lbs) @ 6500 RPM.
How much does the Kawasaki Z650 weigh?
The 2021 Kawasaki Z650 has a Dry weight of 173.0 kg (381.4 pounds).
Shop this bike
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The 2021 Kawasaki Z650 is a sleek and powerful middleweight motorcycle that delivers an exhilarating riding experience. With its 649cc parallel-twin engine, the Z650 offers impressive performance and smooth power delivery, making it ideal for both city commuting and spirited weekend rides. The lightweight chassis and nimble handling of the Z650 provide excellent maneuverability, allowing riders to confidently tackle tight corners and navigate through traffic with ease. Additionally, the modern and aggressive styling of the Z650 sets it apart from other bikes in its class, making it a standout choice for riders looking for a combination of performance and aesthetics.
Overall, the 2021 Kawasaki Z650 is a standout option in the middleweight motorcycle segment, offering a perfect blend of performance, handling, and style. Whether you're a seasoned rider or a newcomer to the sport, the Z650 provides an exciting and enjoyable riding experience that is sure to impress. With its powerful engine, agile handling, and eye-catching design, the Z650 is a top contender for anyone in the market for a versatile and thrilling motorcycle.
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