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← Kawasaki
Naked bike · 2021

Z650

US$ 7249. MSRP depends on country, taxes, accessories, etc.
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MotoLibrary Score
48 /100 Balanced
Power/Weight
0.36 hp/kg
Torque
66 Nm
Engine
649 ccm

2021 Kawasaki Z650 Key Specifications & Summary

The 2021 Kawasaki Z650 is a naked bike motorcycle manufactured by Kawasaki, equipped with a 649.0 ccm (39.60 cubic inches) displacement unit (Twin, four-stroke) with liquid cooling. In factory trim, the engine delivers a rated power of 67.3 HP (49.1 kW)) @ 8000 RPM and peak torque of 65.7 Nm (6.7 kgf-m or 48.5 ft.lbs) @ 6500 RPM, paired with a 6-speed transmission and chain (final drive) final drive.

For rider ergonomics and real-world handling, key chassis measurements include a curb weight of 187.0 kg (412.3 pounds), seat height of 790 mm (31.1 inches) If adjustable, lowest setting., fuel capacity of 15.14 litres (4.00 US gallons). Review the complete factory specification tables below to evaluate engine internals, suspension travel, braking hardware, tyre sizes and ownership estimates, or compare the 2021 Kawasaki Z650 side by side against rival models in the Naked bike lineup.

Engine
Displacement 649.0 ccm (39.60 cubic inches)
Engine Type Twin, four-stroke
Engine Details Die-cast aluminium cylinder and lightweight coated pistons
Power 67.3 HP (49.1 kW)) @ 8000 RPM
Torque 65.7 Nm (6.7 kgf-m or 48.5 ft.lbs) @ 6500 RPM
Compression 10.8:1
Bore x Stroke 83.0 x 60.0 mm (3.3 x 2.4 inches)
Fuel System Injection. DFI® with Keihin 36mm Keihin throttle bodies
Fuel Control Double Overhead Cams/Twin Cam (DOHC)
Ignition TCBI with electronic advance
Lubrication Forced lubrication, semi and #8209;dry sump
Cooling Liquid
Max RPM 12500
Transmission
Gearbox 6-speed
Final Drive Chain (final drive)
Clutch Assist and Slipper Clutch
Driveline Sealed chain
Performance
Fuel Consumption 4.44 litres/100 km (22.5 km/l or 52.98 mpg)
Greenhouse Gases 103.0 CO2 g/km. (CO2 - Carbon dioxide emission)
Chassis
Frame Type Trellis, high-tensile steel
Rake 24.0°
Trail 100 mm (3.9 inches)
Front Suspension 41 mm telescopic fork
Front Travel 124 mm (4.9 inches)
Rear Suspension Horizontal Back-link with preload adjustment
Rear Travel 130 mm (5.1 inches)
Wheelbase 1410 mm (55.5 inches)
Ground Clearance 130 mm (5.1 inches)
Wheels & Brakes
Front Tyre 120/70-ZR17
Rear Tyre 160/60-ZR17
Front Brakes Double disc. Petal-type rotors with two-piston calipers. Optional ABS.
Front Brake Ø 300 mm (11.8 inches)
Rear Brakes Single disc. Petal disc. Single-piston. Optional ABS.
Rear Brake Ø 220 mm (8.7 inches)
Wheels Dunlop Sportmax Roadsport 2 tires
Dimensions & Weight
Weight incl. 187.0 kg (412.3 pounds)
Seat Height 790 mm (31.1 inches) If adjustable, lowest setting.
Overall Height 1064 mm (41.9 inches)
Overall Length 2065 mm (81.3 inches)
Overall Width 765 mm (30.1 inches)
Fuel Capacity 15.14 litres (4.00 US gallons)
Other
Starter Electric
Color Options Pearl Blizzard White/Metallic Spark Black, Metallic Spark Black/Metallic Flat Spark Black
Instruments TFT Instrumentation
Warranty 12 Month Limited Warranty
Notes

Smartphone Connectivity

More from Kawasaki
Buying Checklist

Before You Compare This Bike

Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.

Power
Compare engine output with similar motorcycles if acceleration, highway use or two-up riding matters.
Torque
Torque is useful for judging real-world pull, especially for touring, commuting and loaded riding.
Seat Height
Check the seat height against your inseam and riding posture before choosing a motorcycle.
Fuel Capacity
Fuel capacity helps estimate touring range and how often you may need to stop.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Suspension
Suspension details can matter for comfort, road feel and long-distance riding.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
Rider Profile

Who Is This Bike For?

🟡
Intermediate
Requires some riding experience.
🏍️
Best For
City & Weekend Rides
📏
Seat Height
79 cm / 31.1 in
⚖️
Handling
Medium weight — some experience needed
100 ? 600 : hp > 50 ? 400 : 250; return Math.round(base + (this.km / 10000) * 150); }, get insuranceCost() { const hp = 67.3; return Math.round(hp > 100 ? 800 : hp > 50 ? 500 : 300); }, get total() { return this.fuelCost + this.maintenanceCost + this.insuranceCost; }, get monthly() { return Math.round(this.total / 12); } }">
Estimate

Ownership Cost Calculator

⛽ Fuel
per year
🔧 Maintenance
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🛡️ Insurance
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TOTAL

* Estimates only. Actual costs vary by country, riding habits, insurance provider and maintenance schedule.

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