Harley-Davidson Sportster Forty-Eight (2010–2015): A Timeless Custom Cruiser Review
Introduction
The Harley-Davidson Sportster Forty-Eight isn’t just a motorcycle—it’s a statement. Produced between 2010 and 2015, this model generation carved its niche as a stripped-down, aggressive cruiser that blends classic Harley DNA with modern muscle. Designed for riders who crave authenticity, the Forty-Eight delivers a raw, visceral experience wrapped in retro aesthetics. From its iconic peanut fuel tank to its blacked-out engine, this bike screams attitude. But how does it hold up as a daily rider or a weekend warrior? Let’s dive in.
Design & Styling: Born to Stand Out
The Sportster Forty-Eight’s design is a masterclass in minimalist rebellion. Its 7.9-liter (2.1-gallon) peanut fuel tank—a nod to 1940s Harley styling—dominates the profile, paired with bobbed fenders and a solo seat that hugs the frame. The low-slung stance, with a seat height of 660 mm (26 inches), gives it a crouched, predatory look. Color options like Hard Candy Coloma Gold Flake and Vivid Black emphasize its custom flair, while the blacked-out Evolution® engine and laced steel wheels add industrial grit.
The cockpit is refreshingly simple: a 4-inch speedometer integrated into the handlebar clamp keeps the focus on the road. Chrome accents on the staggered shorty exhaust and optional ABS brakes (2013–2015 models) balance its dark aesthetic. This isn’t a bike that blends in—it’s built to turn heads.
Engine & Performance: The Heart of a Rebel
At the core of the Forty-Eight lies Harley’s 1,201 cc (73.3 cu in) Evolution® V-twin, air-cooled and unapologetically analog. With 107.1 Nm (79 ft-lbs) of torque peaking at 4,000 RPM, it’s tuned for low-end grunt rather than top-end speed. The engine’s vibrations are part of its charm—a rhythmic thump that resonates through the chassis at idle and evolves into a growl as you twist the throttle.
The 6-speed transmission (5-speed on pre-2014 models) pairs smoothly with the belt final drive, offering relaxed cruising at highway speeds. Fuel efficiency sits at 4.9 L/100 km (48 mpg), though aggressive riding can nudge this higher. While the air-cooled design keeps things simple, it does demand caution in stop-and-go traffic to avoid overheating.
Ride Experience: Raw, Authentic, Unfiltered
Swinging a leg over the Forty-Eight feels like mounting a mechanical bull. The seat’s narrow design and low height make it accessible for shorter riders, but the 99 mm (3.9 inches) of ground clearance limits lean angles—scraping pegs is a given on spirited rides. The suspension setup (39 mm front forks, preload-adjustable rear shocks) prioritizes style over comfort, translating every road imperfection into your spine. This isn’t a touring bike, and it doesn’t pretend to be.
Handling is predictable but heavy, with a 1519 mm (59.8-inch) wheelbase and 250.8 kg (553 lbs) wet weight demanding deliberate inputs. The 130/90-16 front tire and 150/80-16 rear tire provide ample grip, though the single-piston rear brake feels underwhelming compared to the dual-piston front setup. Opting for ABS (available post-2013) adds confidence in wet conditions.
Competition: How Does the Forty-Eight Stack Up?
1. Yamaha Bolt (2014–2015)
The Bolt’s 942 cc V-twin is smoother and lighter, with a 942 cc V-twin and modern fuel injection. It undercuts the Forty-Eight in price but lacks Harley’s brand cachet and customization potential.
2. Indian Scout Sixty (2015)
Indian’s liquid-cooled 999 cc engine offers more refinement and power, but its higher price tag and less “retro” aesthetic alienate purists. The Scout’s suspension also edges ahead in comfort.
3. Honda Shadow Phantom
Honda’s 745 cc V-twin is bulletproof and fuel-efficient, but it’s underwhelming for riders craving the Forty-Eight’s torque and visual drama.
Verdict: The Forty-Eight wins on attitude and aftermarket support but trails in tech and comfort. It’s a bike for riders who value heritage over gadgets.
Maintenance: Keeping the Legend Alive
Owning a Forty-Eight means embracing its mechanical soul—and its upkeep. Here’s what to prioritize:
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Oil Changes
The Evolution® engine’s 2.6 L (2.75 qt) oil capacity demands frequent changes—every 5,000 km (3,100 miles)—with SAE 20W-50 to handle the heat. Use a high-quality filter to avoid debris buildup. -
Belt Drive Care
Inspect the belt for cracks and tension every 10,000 km (6,200 miles). Replacements are rare but critical to prevent sudden failure. -
Brake Checks
The single-piston rear caliper wears quickly. Upgrade to sintered pads for better bite, and flush DOT 4 fluid annually. -
Tire Pressures
Maintain 2.3 bar (33 psi) front and 2.6 bar (38 psi) rear for optimal grip and wear. -
Valve Adjustments
Hydraulic lifters eliminate manual adjustments, but listen for ticking—a sign of worn components.
Pro Tip: Upgrade to aftermarket shocks (like Progressive Suspension) for a smoother ride, and swap the stock exhaust for a freer-flowing system to unlock the engine’s full voice.
Conclusion: A Modern Classic
The Harley-Davidson Sportster Forty-Eight isn’t for everyone—and that’s the point. It’s a motorcycle that rewards those who appreciate mechanical simplicity, raw power, and timeless style. While its rivals offer more comfort and tech, none match its ability to make even a grocery run feel like a rebellion. For riders willing to trade plushness for personality, the Forty-Eight remains a legend. And with MOTOPARTS.store’s catalog of upgrades, you can keep yours running—and looking—sharp for decades.
Specifications sheet
Engine | |
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Stroke: | Four-stroke |
Max power: | 49 kW | 66.0 hp |
Max torque: | 107 Nm |
Fuel system: | Electronic Sequential Port Fuel Injection (ESPFI) |
Max power @: | 3750 rpm |
Displacement: | 1201 ccm |
Max torque @: | 4000 rpm |
Bore x stroke: | 88.9 x 96.8 mm (3.5 x 3.8 in) |
Configuration: | V |
Cooling system: | Air |
Compression ratio: | 9.7:1 |
Lubrication system: | Dry sump |
Number of cylinders: | 2 |
Dimensions | |
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Wheelbase: | 1520 mm (59.8 in) |
Dry weight: | 251 |
Wet weight: | 260 |
Seat height: | 660 mm (26.0 in) adjustable |
Overall width: | 831 mm (32.7 in) |
Overall length: | 2255 mm (88.8 in) |
Ground clearance: | 99 mm (3.9 in) |
Fuel tank capacity: | 8.0 L (2.11 US gal) |
Drivetrain | |
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Final drive: | Belt |
Transmission: | 5-speed (2010–2012) / 6-speed (2013–2015) |
Final drive ratio: | 68/29 |
Primary drive ratio: | 57/38 |
Maintenance | |
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Battery: | 12V 12Ah maintenance-free |
Rear tire: | 150/80-b16 |
Engine oil: | 20W50 |
Front tire: | 130/90-b16 |
Brake fluid: | DOT 4 |
Spark plugs: | NGK DCPR7E or NGK DCPR7EIX |
Spark plug gap: | 1.0 |
Valve clearance: | Hydraulic self-adjusting lifters |
Transmission oil: | 85W-90 |
Engine oil capacity: | 2.6 |
Transmission oil capacity: | 0.95 |
Engine oil change interval: | Every 5000 km or 2 years |
Recommended tire pressure (rear): | 2.6 bar (38 psi) |
Recommended tire pressure (front): | 2.3 bar (33 psi) |
Additional Features | |
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ABS: | Optional on select models |
Wheels: | Black laced steel |
Exhaust: | Chrome staggered shorty dual exhaust |
Lighting: | LED indicator lights, 55W low beam/60W high beam |
Instruments: | Electronic speedometer with odometer, dual tripmeter, clock |
Chassis and Suspension | |
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Frame: | Mild steel tubular frame |
Trail: | 107 mm (4.2 in) |
Rear brakes: | Single 260 mm disc, single-piston caliper (optional ABS) |
Front brakes: | Single 292 mm disc, dual-piston caliper (optional ABS) |
Rear suspension: | Coil-over shock, preload adjustable |
Front suspension: | 39 mm telescopic fork |
Rake (fork angle): | 30° |
Rear wheel travel: | 41 mm (1.6 in) |
Front wheel travel: | 92 mm (3.6 in) |