Cruisers

2015Harley-Davidson Softail Slim

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The 2015 Harley-Davidson Softail Slim is a lightweight cruiser that delivers classic styling with modern performance, powered by a 77.78 HP Evolution engine. Its low 25.6-inch seat height and nimble handling make it ideal for riders seeking an accessible yet authentic Harley experience. Known for its stripped-down, minimalist aesthetic and heritage appeal, the Slim balances vintage charm with contemporary conveniences like electronic fuel injection and advanced instrumentation.

Capacity: 1688.0 ccm
Engine: V-Twin, four-stroke
Gearbox: 6-speed
Dry weight: 304.4 kg
Seat height: 650 mm
Power: 77.8 HP (56.8 kW) @ 5250 RPM

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What’s new for the 2015 Harley-Davidson Softail Slim

vs the 2014

Spec	2014	2015
Power	86.0 HP (63.3 kW)	77.8 HP (56.8 kW) @ 5250 RPM
Torque	133.8 Nm (13.6 kgf-m or 98.7 ft.lbs) @ 3000 RPM	132.0 Nm (13.5 kgf-m or 97.4 ft.lbs) @ 3000 RPM
Seat height	605 mm (23.8 inches)	650 mm (25.6 inches)
Front brakes	Single disc. 4-piston	Single disc. ABS. 4-piston

Other years 2013 2014 2015 2016 2017 2018 2019 2020 2021

How it rides

Editorial estimate from the spec sheet - not lab tested

Off-road & trail5%

Cornering30%

City riding45%

Daily riding55%

Touring55%

Two-up45%

Track10%

Best for: Built for laid-back boulevard cruising and stylish weekend rides rather than outright performance.
Built for: A stripped-down, minimalist Softail with bobber styling, deep torque from the Milwaukee-Eight V-twin, and relaxed, low-slung ergonomics that reward smooth, unhurried riding.
Not ideal for: Not for riders seeking sharp cornering agility, off-road capability, or a light, flickable machine for tight technical roads.

Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.

Will it fit you?

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Your height

Inseam (optional)

Units

At 650mm, a rider of 68.9" with a 31" (estimated) inseam will reach the ground with both feet flat on the 2015 Harley-Davidson Softail Slim, with a cramped knee angle of around 70 degrees and an upright riding position.

Assumes about 30mm of suspension sag once seated. This is an approximation from category-typical geometry, not a measurement of this bike or of you - sit on one before you buy.

More bikes at 750 mm or under — Short Kings →

Find bikes that fit your height →

Range and running costs

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Units

Currency

Fuel per litre

Riding a year

Based on the maker's published fuel consumption and tank size. Real-world figures depend on how and where you ride, and the last litres of a tank are reserve. Prices shown greyed are examples - type your own.

Full specifications

Engine

Capacity: 1688.0 ccm
Power: 77.8 HP (56.8 kW) @ 5250 RPM
CO2 Emissions: 153 CO2 g/km
EPA Est. Fuel Consumption: 6.53 L/100km (36.0 US mpg)
EPA CO Emissions: 1.8 CO g/km
Torque: 132.0 Nm (13.5 kgf-m) @ 3000 RPM
Engine type: V-Twin, four-stroke
Fuel consumption: 5.60 litres/100 km (17.9 km/l)
Power/weight ratio: 0.2556 HP/kg (dry)
Bore x stroke: 98.4 x 111.3 mm
Compression: 9.6:1
Cooling system: Air
Fuel system: Injection
Starting: Electric
Aspiration: Naturally aspirated
Valves per cylinder: 2

Transmission

Gearbox: 6-speed
Transmission type: Manual
Final drive: Belt
Clutch: Multi-plate with diaphragm spring in oil bath

Dimensions & weight

Wheelbase: 1636 mm
Overall length: 2350 mm
Seat height: 650 mm
Dry weight: 304.4 kg
Wet weight: 317.5 kg
Fuel capacity: 18.90 litres
Ground clearance: 114 mm
Oil capacity: 3.30 litres

Chassis & suspension

Front suspension: Telescopic fork
Rear suspension: Twin shocks
Rake (fork angle): 31.0°
Trail: 147 mm

Brakes & wheels

Front brakes: Single disc. ABS. 4-piston
Rear brakes: Single disc. 2-piston
ABS: Yes
Front tyre: MT90-B16
Rear tyre: MU85-B16

Other

Color options: Amber Whiskey/Vivid Black, Charcoal Satin/Vivid Black Satin, Radioactive Green, Superios Blue, Charcoal Satin, Sand Cammo Denim, Vivid Black.
Fuel Tank Material: Metal

Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.

What changed, year to year

Differences highlighted

Specification	2013	2015	2017	2019	2021
Capacity	1688 cc	1688 cc	1688 cc	1746 cc	1746 cc
Dry weight	304 kg	304 kg	308 kg	291 kg	291 kg
Seat height	605 mm	650 mm	650 mm	660 mm	648 mm
Fuel capacity	18.9 L	18.9 L	18.9 L	18.9 L	18.9 L