Harley-Davidson Softail Breakout - 2018 Specifications and Reviews

The 2018 Harley-Davidson Softail Breakout is a modern cruiser designed for riders seeking classic styling with contemporary performance. Known for its aggressive low-slung stance, powerful 103 cubic inch engine, and premium handling courtesy of its ABS-equipped braking system, it appeals to experienced riders who value comfort on longer rides. Its minimalist design and accessible seat height make it an ideal choice for cruiser enthusiasts seeking authentic American motorcycle character.

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General information

CategoryCustom / cruiser
Year2018
ModelHarley-Davidson Softail Breakout

Engine and Transmission Specifications

Exhaust system2-into-2 staggered; catalyst in muffler
Greenhouse gases127.6 CO2 g/km. (CO2 - Carbon dioxide emission)
Fuel consumption5.50 litres/100 km (18.2 km/l or 42.77 mpg)
DrivelineChain, 34/46 ratio primary drive
ClutchMulti-plate with diaphragm spring in oil bath
Transmission type,final driveBelt
Gearbox6-speed
Cooling systemAir
Fuel controlDouble Overhead Cams/Twin Cam (DOHC)
Fuel systemInjection. Electronic Sequential Port Fuel Injection
Bore x Stroke100.0 x 111.1 mm (3.9 x 4.4 inches)
Compression10.0:1
Torque145.00 Nm (14.8 kgf-m or 107.0 ft.lbs) @ 3000 RPM
Power86.00 HP (62.8 kW) @ 5000 RPM
Engine detailsMilwaukee-Eight® 107, optional 114 Big Twin.
Engine typeV2, four-stroke
 
 

Brakes, suspension, Frame and wheels

WheelsGloss black, Gasser II cast aluminum
Rear brakesSingle disc. ABS. 2-piston
Front brakesSingle disc. ABS. 4-piston
Rear tyre240/40-R18
Front tyre130/60-B21
Rear SuspensionTwin shocks
Front SuspensionTelescopic fork
Trail145 mm (5.7 inches)
Rake (fork angle)34.0°
 
 

Physical measures and capacities

Oil capacity3.30 litres (0.22 quarts)
Fuel capacity13.20 litres (3.49 gallons)
Wheelbase1,695 mm (66.7 inches)
Ground clearance115 mm (4.5 inches)
Overall length2,370 mm (93.3 inches)
Seat height665 mm (26.2 inches) If adjustable, lowest setting.
Power/weight ratio0.2925 HP/kg
Weight incl. oil, gas, etc305.0 kg (672.4 pounds)
Dry weight294.0 kg (648.2 pounds)

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
LightHigh beam, neutral, low oil pressure, turn signals, engine diagnostics, security system (optional), 6-speed, low fuel warnings
StarterElectric
Color optionsVivid Black, Black Tempest, Twisted Cherry, Silver Fortune, Legend Blue Denim

Performance Profile & Rider Fit

86 hp
Peak Power
4.8s
0-60 mph

Best For

Track10%
City45%
Cornering25%
Daily Riding50%
Touring35%
Passenger30%

Rider Profile

Best ForBest suited to riders who already have experience handling heavy, long, low-slung cruisers, especially given the wide 240mm rear tire's effect on steering.
PurposeBuilt for boulevard cruising and making a visual statement with drag-style styling rather than for outright speed or distance touring.
Rider FitThe very low 665mm seat height suits shorter riders, but the substantial 305kg wet weight demands confidence and strength at low speeds and when maneuvering or parking.
CharacterA muscular, low-slung factory custom with strong torque off the line, deep exhaust presence, and drag-bike attitude rather than outright top-end performance.
Not Ideal ForNot a good fit for riders seeking agile cornering, off-road capability, long-distance touring comfort, or a passenger-friendly setup.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.

Rider Fit Visualizer

2018 Harley-Davidson Softail Breakout Rider Ergonomics Assessment

Calculated in your browser only - your height/inseam are never sent to our servers.

Feet:

At 665mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with both feet flat on the 2018 Harley-Davidson Softail Breakout, with a cramped knee angle of around 75 degrees and an upright riding position.

Data quality: measured. Assumes about 30mm of suspension sag once seated (a typical street-bike rule of thumb - stiffer or softer suspension will vary). This is an approximation from category-typical geometry and generic body proportions, not a measurement of this specific bike or you - sit on it before you buy.

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Rider Reviews

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MotorcycleDB Review

The 2018 Harley-Davidson Softail Breakout is a powerful and stylish motorcycle that offers a thrilling riding experience. With its 114 cubic inch Milwaukee-Eight engine, this bike delivers impressive performance and a deep, rumbling exhaust note. The Softail Breakout also features a sleek, modern design with a wide rear tire and a low-slung, aggressive stance that turns heads wherever it goes. Whether you're cruising on the open road or navigating city streets, the Breakout offers a smooth and responsive ride that makes it a joy to handle. Overall, the 2018 Harley-Davidson Softail Breakout is a standout motorcycle that combines high performance with a head-turning design. Its powerful engine and sleek styling make it a top choice for riders who crave excitement and want to make a bold statement on the road. With its impressive features and unmistakable Harley-Davidson heritage, the Softail Breakout is sure to deliver a memorable riding experience for anyone who's lucky enough to take it for a spin.
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