Naked Motorcycles
2025Kawasaki Z650RS
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The 2025 Kawasaki Z650RS is a modern retro middleweight that blends classic styling with contemporary engineering, making it ideal for new riders and enthusiasts seeking approachable performance. Its 649cc parallel-twin delivers smooth, manageable power with 67.3 horsepower and 64.0 Nm torque, while the lightweight aluminum engine and DOHC design ensure responsive handling and reliability. Best known for combining vintage aesthetics with rider-friendly characteristics, it excels as an accessible gateway to motorcycling without sacrificing genuine capability.
- Capacity
- 649.0 ccm
- Engine
- Parallel Twin, four-stroke
- Gearbox
- 6-speed
- Dry weight
- 174.0 kg
- Seat height
- 800 mm
- Power
- 67.0 HP (49.1 kW) @ 8000 RPM
What’s new for the 2025 Kawasaki Z650RS
vs the 2024| Spec | 2024 | 2025 |
|---|---|---|
| Torque | 65.7 Nm (6.7 kgf-m or 48.5 ft.lbs) @ 6500 RPM | 65.8 Nm (6.7 kgf-m or 48.5 ft.lbs) @ 6700 RPM |
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Designed primarily as a stylish, retro-styled naked roadster for enjoyable street riding rather than outright speed or long-distance touring.
- Built for
- Blends classic Z-series styling with modern underpinnings, offering a fun, torquey parallel-twin engine and nimble handling that rewards playful riding around town and on twisty roads.
- Not ideal for
- Not the best choice for riders seeking high-speed touring comfort, large-scale luggage capacity, or any serious 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
- 67.0 HP (49.1 kW) @ 8000 RPM
- CO2 Emissions
- 119 CO2 g/km
- EPA Certificate No.
- SKAXC.649AAH-004
- EPA Est. Fuel Consumption
- 5.07 L/100km (46.4 US mpg)
- EPA CO Emissions
- 1.3 CO g/km
- Torque
- 65.8 Nm (6.7 kgf-m) @ 6700 RPM
- Engine type
- Parallel Twin, four-stroke
- Fuel consumption
- 4.40 litres/100 km (22.7 km/l)
- Power/weight ratio
- 0.3851 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 dry sump
Transmission
- Gearbox
- 6-speed
- Transmission type
- Manual
- Final drive
- Chain
- Clutch
- Assist and Slipper Clutch
Dimensions & weight
- Wheelbase
- 1405 mm
- Overall length
- 2065 mm
- Overall width
- 800 mm
- Overall height
- 1115 mm
- Seat height
- 800 mm
- Dry weight
- 174.0 kg
- Wet weight
- 187.0 kg
- Fuel capacity
- 12.10 litres
- Ground clearance
- 125 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
- 99 mm
Brakes & wheels
- Front brakes
- Double disc. Petal-type rotors with two-piston calipers. ABS.
- Front brakes diameter
- 300 mm
- Rear brakes
- Single disc. Petal disc. Single-piston. ABS.
- Rear brakes diameter
- 220 mm
- ABS
- Yes
- Front tyre
- 120/70-17
- Rear tyre
- 160/60-17
Other
- Color options
- Ebony, Ebony/Green Ebony/Green, Ebony/Yellow Ebony/Yellow
- Fuel Tank Material
- Metal
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 | 2022 | 2023 | 2025 | 2026 | 2027 |
|---|---|---|---|---|---|
| Capacity | 649 cc | 649 cc | 649 cc | 649 cc | 649 cc |
| Dry weight | 174 kg | 174 kg | 174 kg | 174 kg | 179 kg |
| Seat height | 800 mm | 800 mm | 800 mm | 800 mm | 800 mm |
| Fuel capacity | 12 L | 12.1 L | 12.1 L | 12.1 L | 12 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 Z650RS?
The 2025 Kawasaki Z650RS has a Capacity of 649.0 ccm (39.60 cubic inches).
What engine power does the Kawasaki Z650RS have?
The 2025 Kawasaki Z650RS has a Power of 67.0 HP (49.1 kW) @ 8000 RPM.
How many gears does the Kawasaki Z650RS have?
The 2025 Kawasaki Z650RS has a Gearbox of 6-speed.
What is the torque of the Kawasaki Z650RS?
The 2025 Kawasaki Z650RS has a Torque of 65.8 Nm (6.7 kgf-m or 48.5 ft.lbs) @ 6700 RPM.
How much does the Kawasaki Z650RS weigh?
The 2025 Kawasaki Z650RS has a Dry weight of 174.0 kg (383.6 pounds).
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