Cruisers
2021Kawasaki Vulcan S
49 fields on record
The 2021 Kawasaki Vulcan S is a middleweight cruiser designed for riders seeking accessible performance and manageable handling. Its 649cc parallel-twin engine delivers smooth, predictable power with 60.4 horsepower, making it ideal for new riders and those preferring nimble cruiser dynamics over pure muscle. Known for its approachable ergonomics, responsive acceleration, and classic cruiser styling, the Vulcan S bridges the gap between beginner-friendly and capable performance. A factory ABS option was also available.
- Capacity
- 649.0 ccm
- Engine
- Parallel Twin, four-stroke
- Gearbox
- 6-speed
- Wet weight
- 226.0 kg
- Seat height
- 705 mm
- Power
- 60.4 HP (44.1 kW) @ 7500 RPM
What’s new for the 2021 Kawasaki Vulcan S
vs the 2020| Spec | 2020 | 2021 |
|---|---|---|
| Front brakes | Double disc. ABS. Two-piston calipers. | Double disc. Optional ABS. Two-piston calipers. |
| Rear brakes | Single disc. ABS. Single-piston caliper. | Single disc. Optional ABS. Single-piston caliper. |
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Designed primarily for relaxed street cruising and commuting with a sporty edge rather than outright performance or long-distance touring.
- Built for
- An approachable, torque-friendly parallel-twin cruiser that trades top-end excitement for smooth, confidence-inspiring everyday usability.
- Not ideal for
- Not the right choice for riders chasing high-speed thrills, serious off-road capability, or long two-up touring comfort.
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
- 60.4 HP (44.1 kW) @ 7500 RPM
- CO2 Emissions
- 107 CO2 g/km
- EPA Certificate No.
- MKAXC.649AAE-003
- EPA Est. Fuel Consumption
- 4.56 L/100km (51.6 US mpg)
- EPA CO Emissions
- 2.3 CO g/km
- Torque
- 63.0 Nm (6.4 kgf-m) @ 6600 RPM
- Engine type
- Parallel Twin, four-stroke
- Fuel consumption
- 4.40 litres/100 km (22.7 km/l)
- Power/weight ratio
- 0.2673 HP/kg (wet)
- 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
- Force lubrication, semi-dry sump
Transmission
- Gearbox
- 6-speed
- Transmission type
- Manual
- Final drive
- Chain
- Clutch
- Wet multi-disc
Dimensions & weight
- Wheelbase
- 1575 mm
- Overall length
- 2310 mm
- Overall width
- 880 mm
- Overall height
- 1100 mm
- Seat height
- 705 mm
- Wet weight
- 226.0 kg
- Fuel capacity
- 14.00 litres
- Ground clearance
- 130 mm
- Dry weight
- Not on record - add it
Chassis & suspension
- Frame
- High-tensile steel diamond frame
- Front suspension
- 41mm telescopic fork
- Rear suspension
- Lay-down offset rear shock with linkage and adjustable preload
- Front wheel travel
- 130 mm
- Rear wheel travel
- 81 mm
- Rake (fork angle)
- 31.0°
- Trail
- 119 mm
Brakes & wheels
- Front brakes
- Double disc. Optional ABS. Two-piston calipers.
- Front brakes diameter
- 300 mm
- Rear brakes
- Single disc. Optional ABS. Single-piston caliper.
- Rear brakes diameter
- 250 mm
- ABS
- Optional
- Front tyre
- 120/70-18
- Rear tyre
- 160/60-17
Other
- Color options
- Metallic Flat Raw Graystone, Pearl Blizzard White
- Warranty
- 12
- 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 | 2015 | 2018 | 2021 | 2024 | 2027 |
|---|---|---|---|---|---|
| Capacity | 649 cc | 649 cc | 649 cc | 649 cc | 649 cc |
| Seat height | 706 mm | 705 mm | 705 mm | 705 mm | 706 mm |
| Fuel capacity | 14 L | 14 L | 14 L | 14 L | 14 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 Vulcan S?
The 2021 Kawasaki Vulcan S has a Capacity of 649.0 ccm (39.60 cubic inches).
What engine power does the Kawasaki Vulcan S have?
The 2021 Kawasaki Vulcan S has a Power of 60.4 HP (44.1 kW) @ 7500 RPM.
How many gears does the Kawasaki Vulcan S have?
The 2021 Kawasaki Vulcan S has a Gearbox of 6-speed.
What is the torque of the Kawasaki Vulcan S?
The 2021 Kawasaki Vulcan S has a Torque of 63.0 Nm (6.4 kgf-m or 46.5 ft.lbs) @ 6600 RPM.
How much does the Kawasaki Vulcan S weigh?
The 2021 Kawasaki Vulcan S has a Wet weight of 226.0 kg (498.2 pounds).
Shop this bike
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Same category, weighted similarity
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2021 Kawasaki Vulcan S Tourer
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2019 Yamaha XVS650 A
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2021 Suzuki Boulevard S40
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The 2021 Kawasaki Vulcan S is an impressive motorcycle that combines style, performance, and comfort. With its powerful 649cc parallel-twin engine, the Vulcan S delivers smooth and responsive acceleration, making it a joy to ride on both city streets and open highways. The ergonomic design and adjustable components make it easy for riders of all sizes to find a comfortable riding position, while the nimble handling and strong brakes inspire confidence on every corner. Whether you're a seasoned rider or a beginner, the Vulcan S offers a fantastic combination of power and control.
Overall, the 2021 Kawasaki Vulcan S is a versatile and reliable motorcycle that is well-suited for a wide range of riders. Its sleek design, smooth performance, and comfortable ergonomics make it a great choice for daily commuting, weekend getaways, and everything in between. With its affordable price point and strong build quality, the Vulcan S is a top contender in the midsize cruiser market. Whether you're looking for a stylish and capable bike for your daily commute or a reliable companion for your next adventure, the 2021 Kawasaki Vulcan S is definitely worth considering.
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