Kawasaki EN 650 Vulcan S [2021-2022]: A Modern Cruiser for the Unconventional Rider

Introduction

The Kawasaki Vulcan S is not your grandfather’s cruiser. With its parallel-twin engine, adjustable ergonomics, and sleek, contemporary styling, this motorcycle defies tradition while delivering a ride that’s as accessible as it is thrilling. Designed for riders who value comfort and customization as much as performance, the Vulcan S bridges the gap between entry-level ease and mid-size capability. Having spent time with this machine, it’s clear Kawasaki prioritized versatility without sacrificing the rebellious spirit cruisers are known for. Let’s dive into what makes this bike stand out in a sea of V-twins and chrome-heavy designs.

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Engine & Performance

At the heart of the Vulcan S lies a 649cc liquid-cooled parallel-twin engine borrowed from the Ninja 650 but retuned for cruiser-friendly torque. The DOHC, 8-valve configuration delivers 61 hp at 7,500 rpm and 63 Nm (46.5 lb-ft) of torque at 6,600 rpm, numbers that translate to smooth, predictable power perfect for city commutes and highway cruising alike.

The engine’s 180-degree crankshaft and balancer shaft ensure vibrations stay minimal, even at higher speeds. Kawasaki’s focus on low-to-midrange grunt means you’ll feel confident rolling on the throttle from a stoplight or overtaking slower traffic. The DFI fuel injection system with 38mm throttle bodies provides crisp throttle response, while the under-engine muffler contributes to a satisfying growl without being obnoxious.

During my test ride, the Vulcan S excelled in urban environments. The clutch is light, and the Positive Neutral Finder (a Kawasaki staple) makes gear shifts intuitive. On the highway, the engine hums comfortably at 4,000 rpm in sixth gear, though wind buffeting becomes noticeable above 110 km/h (68 mph) due to the minimalist cruiser stance.

Fuel efficiency sits at 4.4 L/100 km (53.5 mpg), giving the 14L (3.7-gallon) tank a theoretical range of 318 km (198 miles)—practical for weekend jaunts but requiring planning for longer tours.

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Handling & Ergonomics

The Vulcan S’s chassis is a masterclass in approachable engineering. The high-tensile steel perimeter frame keeps weight low (229 kg / 504.9 lbs wet), and the 1,575 mm (62-inch) wheelbase strikes a balance between stability and agility. Unlike bulkier cruisers, this bike feels nimble when threading through traffic or navigating tight parking lots.

Kawasaki’s ERGO-FIT® system is the star here. With 18 possible configurations, riders can adjust the handlebars, footpegs, and seat to match their physique. The standard seat height is a welcoming 705 mm (27.8 inches), but optional reduced-reach seats drop it further for shorter inseams. During my ride, the mid-reach setup provided a relaxed, foot-forward position ideal for my 178 cm (5’10”) frame.

Suspension leans toward comfort over sportiness. The 41mm telescopic fork offers 129 mm (5.1 inches) of travel up front, while the laydown rear shock (adjustable for preload) manages 81 mm (3.2 inches). It absorbs potholes adequately, though sharper bumps can jolt the rider. Cornering is surprisingly confident thanks to the 120/70-18 front and 160/60-17 rear tires, but the footpegs’ high placement limits lean angles for aggressive riders.

Braking is handled by a 300mm front disc with a dual-piston caliper and a 250mm rear disc with a single-piston setup. ABS (optional on some trims) adds reassurance in wet conditions, though the rear brake lacks bite during hard stops.

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Design & Styling

The Vulcan S’s design is a bold departure from cruiser norms. The teardrop fuel tank, inverted triangle headlight, and LED taillight give it a futuristic edge, while the under-engine exhaust and metallic trim nods to classic aesthetics. The Café variant adds a small windscreen and sportier accents, but even the base model turns heads with its Metallic Matte Graphenesteel Gray or Candy Crimson Red finishes.

Practicality isn’t sacrificed for style. The solo seat’s thick padding supports hour-long rides, and the slim rear fender keeps the silhouette clean. Storage options are limited—a drawback for touring—but aftermarket saddlebags from MOTOPARTS.store can easily remedy this.

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Competition

The Vulcan S competes in a niche between lightweight entry cruisers and heavyweight touring machines. Here’s how it stacks up:

• Honda Rebel 500: Lighter (191 kg / 421 lbs) and cheaper, the Rebel excels for beginners but lacks the Vulcan’s power and adjustability. Its 471cc parallel-twin feels anemic above 100 km/h (62 mph).
• Yamaha Bolt R-Spec: A 942cc V-twin with more torque (80 Nm / 59 lb-ft), the Bolt appeals to traditionalists but weighs 247 kg (544 lbs) and offers no ergonomic customization.
• Suzuki Boulevard M50: With a 805cc V-twin, the M50 delivers raw power but feels dated compared to the Vulcan’s modern tech and agility.

The Vulcan S’s standout feature is its ERGO-FIT® system, making it a unicorn in its class for riders seeking a personalized fit.

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Maintenance

Ownership costs are reasonable, but attention to these areas will keep your Vulcan S running smoothly:

1. Oil Changes: Use SAE 10W-40 (1.8L with filter). Kawasaki recommends intervals of 6,000 km (3,728 miles). MOTOPARTS.store offers synthetic blends for extended performance.
2. Chain Care: The 120-link sealed chain requires regular cleaning and lubrication. Check tension every 1,000 km (621 miles)—aim for 20-30 mm (0.8-1.2 inches) of free play.
3. Tire Pressure: Maintain 2.25 bar (32.6 psi) front and 2.5 bar (36.3 psi) rear for optimal grip and wear.
4. Brake Fluid: Replace DOT 4 fluid every two years to prevent moisture buildup.
5. Cooling System: The 1.4L radiator benefits from annual flushes, especially in hotter climates.

Pro Tip: Upgrade to NGK CR9EIA-9 spark plugs (electrode gap 0.8-0.9 mm) for smoother cold starts.

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Conclusion

The Kawasaki Vulcan S is a rebel with a cause: to prove cruisers can be both adaptable and exciting. Its parallel-twin engine, adjustable ergonomics, and avant-garde design make it a compelling choice for new riders and seasoned motorcyclists tired of cookie-cutter V-twins. While it won’t satisfy hardcore tourers or dragstrip enthusiasts, it’s a master of urban practicality and backroad fun.

Whether you’re tweaking the suspension preload or browsing MOTOPARTS.store for custom grips and performance air filters, the Vulcan S invites you to make it uniquely yours. In a world of conformity, this bike is a welcome exception.

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Specifications sheet

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