Kawasaki Vulcan S (2014-2020): A Cruiser That Defies Convention

Introduction: The Anti-Traditional Cruiser

The Kawasaki Vulcan S isn’t your grandpa’s cruiser. From 2014 to 2020, this parallel-twin-powered machine challenged cruiser norms with Ninja-derived DNA, a modular ergonomic system, and handling that feels more sportbike than laid-back boulevardier. After a day in the saddle of this liquid-cooled anomaly, one thing becomes clear: Kawasaki didn’t just build a motorcycle—they engineered a gateway drug for riders tired of V-twin clichés.

Engine & Performance: Ninja Spirit in Cruiser Clothing

At its heart beats a 649cc DOHC parallel twin lifted from the Ninja 650 but retuned for cruiser duty. The 180-degree crankshaft and balancer shaft deliver 61 HP at 7,500 RPM and 63 Nm (46.5 lb-ft) at 6,600 RPM – numbers that scoff at lethargic V-twins.

Key Takeaways:
- Low-End Confidence: Heavier flywheel mass ensures buttery roll-ons from stops – no drama in city traffic.
- Mid-Range Muscle: Connector tubes between headers iron out torque dips, creating a linear pull from 3,000 RPM that’s addictive when overtaking.
- Sporting Heritage: The semi-dry sump design keeps the engine compact, contributing to the Vulcan S’s 228 kg (503 lbs) curb weight – a featherweight among middleweight cruisers.

The DFI fuel injection with 38mm throttle bodies responds crisply, though the under-engine muffler’s muted growl leaves enthusiasts eyeing aftermarket exhausts (hint: MOTOPARTS.store stocks slip-ons that unlock a deeper bark).

Chassis & Handling: Where Cruiser Meets Canyon Carver

Kawasaki’s high-tensile steel perimeter frame and 31-degree rake create a 1,575mm (62-inch) wheelbase that’s stable yet nimble. Unlike most cruisers that wallow, the Vulcan S leans into corners with:
- 41mm Telescopic Forks: 130mm (5.1") travel soaks up potholes without sacrificing feedback.
- Horizontal Back-Link Rear Shock: Adjustable 7-position preload handles everything from solo rides to passenger duty, with 81mm (3.2") travel maintaining composure over broken pavement.

The 120/70-18 front and 160/60-17 radial tires offer surprising edge grip, while the 705mm (27.8") seat height lets even 5’6" riders flat-foot at stops. Footpegs sit higher than typical cruisers, allowing 40-degree lean angles before scraping – enough to embarrass a few sportster pilots.

ERGO-FIT System: Custom Tailoring for Real Riders

Kawasaki’s ace card is the ERGO-FIT system, offering 18 ergonomic combinations through:
- 3 Seat Options: Reduced reach (closer to bars), Mid (standard), Extended (2" back).
- 3 Footpeg Positions: Forward, Mid, Back (requires $89 linkage rod kit).
- 2 Handlebar Choices: Standard or 43mm-closer Reduced Reach.

During testing, swapping to the Reduced Reach seat and bars transformed the bike for a 5’2" rider – proof that “one-size-fits-all” is dead. For taller riders, the Extended seat ($219) and passenger peg delete kit ($149) create a stretched-out highway throne.

Styling: Modern Minimalism Meets Cruiser Attitude

The Vulcan S’s design language splits opinions – and that’s intentional. Key elements:
- Inverted Triangle Headlight: A futuristic LED-lit signature (pre-2018 models use halogens).
- Teardrop Tank: 14L (3.7 gal) capacity with knee indents that hug the rider.
- Exposed Chassis: The perimeter frame and D-section swingarm flaunt engineering over chrome.

Café variants add a color-matched flyscreen and 3-tone paint, while SE models like the 2020 Café in Metallic Matte Purple lean into urban sophistication. Purists scoff; Gen Z riders instagram relentlessly.

Competition: How It Stacks Up

1. Honda Shadow Phantom (750cc)

• Pros: Classic V-twin throb, lower $7,499 MSRP.
• Cons: 5-speed gearbox, 19% less power, no ergo adjustments.
• Verdict: For tradition-bound riders only.

2. Yamaha Bolt R-Spec (950cc)

• Pros: Air-cooled V-twin character, 22% more torque.
• Cons: Firmer seat, non-adjustable suspension, 27kg heavier.
• Verdict: Raw vs refined – choose your fighter.

3. Suzuki Boulevard C50 (805cc)

• Pros: Shaft drive reliability, 27L storage options.
• Cons: 248kg curb weight, vague floorboards mid-corner.
• Verdict: Touring comfort over agility.

The Vulcan S Advantage: Lighter, adjustable, and fuel-injected – it’s the Swiss Army knife of mid-size cruisers.

Maintenance: Keeping Your Vulcan S Sharp

Critical Service Intervals:

• Engine Oil: Every 6,000 km (3,700 mi) with 1.8L of 10W-40 (1.6L without filter).
• Chain: 120-link O-ring chain needs adjustment every 800 km (500 mi) – upgrade to DID 428VX2 chains for longer life.
• Valve Clearance: Check every 26,000 km (16,000 mi):
• Intake: 0.15-0.21mm (0.006-0.008")
• Exhaust: 0.22-0.31mm (0.009-0.012")

Pro Tips:
- Use NGK CR9EIA-9 plugs gapped to 0.8-0.9mm for crisp throttle response.
- Flush brake fluid with DOT4 annually – sticky calipers haunt neglected Vulcans.
- Coolant changes every 4 years (1.4L of Kawasaki Green) prevent corrosion in the liquid-cooled system.

The Verdict: A Cult Classic in the Making

The Vulcan S isn’t perfect – the 14L tank limits range to 250km (155 mi), and the stock seat firms up after hour two. But as a daily rider that dodges cruiser clichés, it’s peerless. With the aftermarket support (think Corbin seats, Vance & Hines pipes), this Kawasaki morphs from commuter to canyon carver to café racer – often in the same afternoon.

Final Thought: In a sea of imitation, the Vulcan S is an original. It’s the cruiser for riders who’d rather carve backroads than polish chrome. And with MOTOPARTS.store’s catalog, that potential is just a click away.

About the Author
A MOTOPARTS.store journalist and Vulcan S owner since 2017, I’ve logged 28,000 km across twisties, highways, and questionable dirt shortcuts. My bike? Lowered pegs, Corbin Solo seat, and a MOTOPARTS.store-sourced Delkevic exhaust that wakes the neighbors.

Specifications sheet