Harley-Davidson Softail Slim [2013 - 2017]: A Timeless Bobber for the Modern Rider

Introduction

The Harley-Davidson Softail Slim, produced between 2013 and 2017, embodies the essence of a stripped-down, no-nonsense bobber while retaining the soul of Milwaukee’s iconic V-twin heritage. Designed to evoke the post-war custom motorcycle scene, this generation of the Softail Slim combines minimalist aesthetics with modern engineering. Whether you’re a seasoned rider craving nostalgia or a newcomer drawn to its muscular stance, the Slim delivers an experience that’s unmistakably Harley. Let’s dive into what makes this machine a standout in the cruiser segment.

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Design: Classic Bobber, Modern Execution

The Softail Slim’s design is a masterclass in restraint. With its slammed suspension, chopped fenders, and blacked-out laced steel wheels, it’s a deliberate nod to the DIY bobbers of the 1940s. The narrow 2350 mm (92.5 in) overall length and low 650 mm (25.6 in) seat height create a compact, approachable profile. Harley offered bold color options like Charcoal Denim, Olive Gold, and Iron Red Denim, but the Slim truly shines in its monochromatic schemes—especially Vivid Black, which accentuates its industrial simplicity.

The shotgun-style exhaust (chrome or black, depending on the model) and solo saddle seat reinforce its minimalist ethos. While the Slim S variant adds subtle aggression with a larger 1801 cc engine and blacked-out components, both versions share a design language that’s timeless yet muscular.

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Engine & Performance: Torque Over Horsepower

At the heart of the Softail Slim lies the Twin Cam 103B engine—a 1690 cc (103 cu in) air-cooled V-twin producing 75 HP (54.7 kW) at 5020 RPM and 126 Nm (92.9 lb-ft) of torque at 3000 RPM. The Slim S, equipped with the Screamin’ Eagle Twin Cam 110B (1801 cc / 109.9 cu in), ups the ante to 92 HP (67.2 kW) and 145 Nm (107 lb-ft).

These numbers tell only half the story. The real magic happens at cruising speeds. The engine’s broad torque curve lets you lug it down to 1500 RPM in sixth gear, yet it’ll still surge forward with a twist of the throttle. Fuel injection ensures crisp response, though purists might miss the carbureted “thump.” The exhaust note—a deep, syncopated rumble—is pure Harley theater.

Fuel economy sits at 5.6 L/100 km (42 mpg), respectable for a 321 kg (707 lb) cruiser. The six-speed transmission and belt final drive are butter-smooth, though the clutch pull can feel heavy in stop-and-go traffic.

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Handling: Surprisingly Nimble for a Cruiser

Don’t let the 1636 mm (64.4 in) wheelbase fool you—the Slim handles tighter than its dimensions suggest. The 31° rake and 147 mm (5.8 in) trail strike a balance between straight-line stability and low-speed agility. At parking-lot speeds, the low center of gravity (thanks to the Softail’s hidden rear shocks) makes it easy to maneuver.

The suspension, however, is a trade-off. The 41 mm telescopic fork and twin rear shocks prioritize style over compliance. Rough roads will jostle you, but on smooth pavement, the Slim feels planted. The MT90-B16 front and MU85-B16 rear tires provide ample grip for spirited cornering, though ground clearance is limited to 115 mm (4.5 in).

Braking improved with optional ABS in later years. The single 4-piston front disc has decent bite, but the rear brake is more of an afterthought—typical for cruisers.

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Comfort: Built for Short Hauls, Not Marathons

The Slim’s ergonomics cater to riders under 183 cm (6’0”). The mid-mounted footpegs and drag-style handlebars create a relaxed, upright riding position. The solo seat is firm yet supportive for hour-long rides, but the lack of wind protection and vibration from the Twin Cam engine can fatigue you on longer trips.

Passengers? Forget it. The Slim is unapologetically a solo machine. For two-up riding, you’ll need to swap the seat and add pegs—a project Harley enthusiasts will relish.

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Technology & Features: Minimalist but Functional

The Softail Slim keeps tech simple. The tank-mounted speedometer packs essential info: gear position, fuel range, tripmeter, and diagnostic codes. LED warning lights and optional security systems add modern convenience without cluttering the retro vibe.

ABS became available in 2014, a welcome addition given the bike’s weight. Missing is a tachometer—a curious omission, though Harley riders often shift by ear anyway.

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Competition: How Does the Slim Stack Up?

The Softail Slim’s closest rivals in the retro-cruiser segment include:

1. Indian Scout (2015+): Lighter, more powerful (100 HP), and water-cooled, the Scout appeals to performance-focused riders. However, it lacks the Slim’s old-school charm.
2. Victory Vegas (2013-2017): With a 1731 cc Freedom V-twin, the Vegas matches the Slim’s torque but feels more modern. Victory’s demise in 2017 hurts its aftermarket support.
3. Yamaha Bolt (2014+): A budget-friendly alternative with a 942 cc V-twin. Lighter and nimbler, but the Bolt’s engine can’t match the Harley’s character.

The Slim’s edge? Its timeless design and the Harley-Davidson ecosystem—countless customization options and a loyal community.

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Maintenance: Keeping Your Slim in Shape

The Twin Cam engine is robust but demands attention:
- Oil Changes: Use SAE 20W-50 (3.3 L / 3.49 qt with filter) every 5,000 km (3,100 mi).
- Primary Chain: Check tension every 10,000 km (6,200 mi).
- Belt Drive: Inspect for cracks and alignment—no lubrication needed.
- Tire Pressure: 2.5 bar (36 psi) front, 2.8 bar (41 psi) rear.

Common upgrades include:
- Suspension: Progressive shocks for better ride quality.
- Exhaust: Slip-on mufflers for a louder bark (and weight savings).
- Seat: A gel-padded solo seat for long rides.

At MOTOPARTS.store, we stock everything from OEM-spec fluids to performance mods. Whether you’re restoring a 2013 model or hot-rodding a Slim S, we’ve got your back.

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Final Thoughts

The 2013–2017 Softail Slim isn’t about cutting-edge tech or blistering speed. It’s about emotion—the thrill of rumbling down a backroad on a machine that looks and feels like it’s defied decades. For riders who value style as much as substance, the Slim remains a compelling choice. And when it’s time to personalize or maintain your Harley, MOTOPARTS.store is here to help you keep the legend rolling.

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Specifications sheet

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