Naked Motorcycles
2018Kawasaki Z650
48 fields on record
The 2018 Kawasaki Z650 is a light, sporty middleweight naked bike popular with newer riders. Its liquid-cooled 649cc parallel twin makes 67.3 hp and 65.7 Nm through a six-speed gearbox and chain. A low 790 mm seat, 187 kg wet weight and 17-litre tank make it easy to live with.
- 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)
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)
- CO2 Emissions
- 95 CO2 g/km
- EPA Certificate No.
- JKAXC.649AAG-010
- 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) @ 6700 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
- Digital
- 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
- Wet multi-disc, manual
Dimensions & weight
- Wheelbase
- 1410 mm
- Overall length
- 2055 mm
- Overall width
- 755 mm
- Overall height
- 1080 mm
- Seat height
- 790 mm
- Dry weight
- 173.0 kg
- Wet weight
- 187.0 kg
- Fuel capacity
- 15.00 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
- 119 mm
- Rear wheel travel
- 132 mm
- Rake (fork angle)
- 26.0°
- Trail
- 82 mm
Brakes & wheels
- Front brakes
- Double disc. Floating discs.
- Front brakes diameter
- 300 mm
- Rear brakes
- Single disc
- Rear brakes diameter
- 220 mm
- Front tyre
- 120/70-ZR17
- Rear tyre
- 160/60-ZR17
Other
- Color options
- Metallic Flat Raw Titanium/Metallic Spark Black, Metallic Flat Spark Black/Metallic Spark Black, Pearl Flat Stardust White/Metallic Spark Black
- 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 | 2018 | 2019 | 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 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 2018 Kawasaki Z650 has a Capacity of 649.0 ccm (39.60 cubic inches).
What engine power does the Kawasaki Z650 have?
The 2018 Kawasaki Z650 has a Power of 67.3 HP (50.2 kW).
How many gears does the Kawasaki Z650 have?
The 2018 Kawasaki Z650 has a Gearbox of 6-speed.
What is the torque of the Kawasaki Z650?
The 2018 Kawasaki Z650 has a Torque of 65.7 Nm (6.7 kgf-m or 48.5 ft.lbs) @ 6700 RPM.
How much does the Kawasaki Z650 weigh?
The 2018 Kawasaki Z650 has a Dry weight of 173.0 kg (381.4 pounds).
Shop this bike
Affiliate linksWe may earn a commission from qualifying eBay or Amazon purchases made through these links. As an Amazon Associate I earn from qualifying purchases.
Please log in or register if you'd like to leave a comment.
Own one? Add it to My Garage and write an owner review with an Owner badge.