Harley-Davidson Softail Fat Boy [2018–2022]: A Timeless Cruiser with Modern Muscle

The Harley-Davidson Softail Fat Boy needs no introduction. Since its cinematic debut in Terminator 2, this machine has been synonymous with American cruiser culture. For its 2018–2022 generation, Harley-Davidson refined the Fat Boy into a modern muscle cruiser that balances classic aesthetics with contemporary engineering. Having spent time aboard this beast, here’s my take on what makes it a standout in the crowded cruiser segment.

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Design & Presence: Industrial Art on Wheels

The Fat Boy’s design philosophy hasn’t strayed far from its roots: it’s still a rolling sculpture of raw, industrial power. The 2018–2022 iteration amplifies this with a beefier stance, thanks to its 160–240mm wide tires (6.3–9.4 inches) mounted on Lakester cast aluminum wheels. The solid-disc wheels (a Fat Boy signature) give it a bulldozer-like profile, while the LED lighting (introduced in later model years) adds a modern edge.

The tank-mounted instrumentation evolved during this generation. Early models featured a retro-styled analog speedometer with digital inserts, but by 2022, Harley upgraded to a 4-inch TFT display with Bluetooth connectivity. This blend of old-school charm and modern tech keeps the cockpit functional without cluttering the minimalist aesthetic.

Color options ranged from understated Vivid Black to bold Performance Orange, ensuring riders could tailor the Fat Boy to their personality. The 2022 Midnight Crimson/Vivid Black combo, in particular, looked like molten metal under sunlight.

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Engine & Performance: Milwaukee-Eight Thunder

At the heart of the Fat Boy lies the Milwaukee-Eight 114 engine (1,868cc / 113.99 cubic inches), a V-twin powerhouse that delivers 100 HP @ 5,020 RPM and a stump-pulling 160–161 Nm (118–119 lb-ft) of torque @ 3,000–3,500 RPM. This air-cooled brute isn’t about top-speed bragging rights—it’s about low-end grunt.

Riding Impressions:

• Low-End Dominance: From a standstill, the Fat Boy launches forward with authority. The torque curve feels like a freight train departing a station, pulling hard from 2,000 RPM.
• Smooth Power Delivery: The 6-speed gearbox and belt final drive minimize driveline lash. Shifts are crisp, and cruising at 110 km/h (68 mph) in sixth gear keeps the engine humming at a relaxed 2,500 RPM.
• V-Twin Character: Air-cooled Harleys have a distinct personality. The engine heat is noticeable in traffic, but the rhythmic thump of the exhaust (especially with aftermarket pipes) is addictive.

Fuel economy sits around 4.8–5.0 L/100 km (47–49 MPG), impressive for a 317 kg (699 lb) machine.

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Chassis & Handling: Surprisingly Agile

Harley’s 2018 Softail overhaul brought a stiffer frame and revised geometry. The Fat Boy’s 30° rake and 104–132mm trail (4.1–5.2 inches) strike a balance between straight-line stability and low-speed maneuverability.

Key Takeaways:

• Confident Cornering: The wide handlebars offer leverage, making U-turns easier than expected for a bike with a 1,666–1,690mm wheelbase (65.6–66.5 inches). The Michelin Scorcher tires (2022 models) provided ample grip during spirited rides.
• Suspension Setup: Early models used conventional twin shocks, but 2022’s hidden monoshock with hydraulic preload adjustment improved ride quality. Over broken pavement, the suspension soaked up bumps without wallowing.
• Braking: Dual 300mm front discs with 4-piston calipers (and optional ABS) offered strong stopping power, though the rear brake felt wooden compared to modern standards.

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Competition: How the Fat Boy Stacks Up

1. Indian Chief (2021–Present)

• Pros: More tech (ride modes, touchscreen), smoother ride.
• Cons: Lacks the Fat Boy’s visual drama and aftermarket support.

2. Honda Fury (2019–2020)

• Pros: Lighter (292 kg / 644 lbs), lower seat height (683mm / 26.9 inches).
• Cons: Underpowered 1,312cc V-twin (57 HP) feels anemic next to the Milwaukee-Eight.

3. Yamaha Star Eluder (2018–2020)

• Pros: Touring-focused with standard hard bags and a fairing.
• Cons: Bulkier and less customizable.

Verdict: The Fat Boy dominates in curb appeal and torque-centric thrills. While rivals offer more tech, none match its cultural cachet.

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Maintenance: Keeping the Thunder Alive

Key Service Points:

1. Oil Changes: The Milwaukee-Eight requires 4.7L (5 US quarts) of SAE 20W-50 oil every 5,000 km (3,100 miles). Skip cheap synthetics—stick to Harley-approved formulas.
2. Belt Drive: Inspect every 16,000 km (10,000 miles) for cracks. Replacements are pricey, but MOTOPARTS.store offers aftermarket options at 30% savings.
3. Valve Adjustments: Hydraulic lifters mean no manual adjustments—a blessing for DIYers.
4. Brake Fluid: Flush DOT 4 fluid every two years to prevent corrosion.

Upgrade Recommendations:

• Exhaust: Swap the stock mufflers for Vance & Hines slip-ons to unlock the V-twin’s true voice.
• Suspension: Progressive Suspension’s monoshock kit (for pre-2022 models) improves ride quality.
• Seat: The stock seat’s foam hardens over time. A Sundowner touring seat adds comfort for long rides.

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Final Thoughts: Why the Fat Boy Endures

The 2018–2022 Softail Fat Boy isn’t just a motorcycle—it’s a statement. It combines the visceral appeal of a classic Harley with enough modern engineering to keep pace with today’s riders. While it won’t out-corner a sportbike or out-tech a BMW, few machines deliver this much charisma per cubic inch.

For owners looking to personalize their Fat Boy, MOTOPARTS.store offers everything from performance upgrades to aesthetic mods. Whether you’re chasing horsepower or just want to turn heads at the local diner, this generation remains a blank canvas for customization.

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Specifications sheet

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