Harley-Davidson Softail Slim - Specifications & Review

Softail Slim

Article Complete Info

Articleid971044
CategoryCustom-cruiser
MakeHarley-Davidson
ModelSoftail Slim
PriceUS$ 15999. MSRP depends on country, taxes, accessories, etc.
Year2021

Chassis, Suspension, Brakes & Wheels

FrontbrakesSingle disc. Optional ABS. 4-piston
FrontsuspensionTelescopic fork
Fronttyre130/90-B16
Rake30.0°
RearbrakesSingle disc. Optional ABS. 2-piston
RearsuspensionTwin shocks
Reartyre150/80-B16
Trail147 mm (5.8 inches)
WheelsGloss Black, Steel Laced

Engine & Transmission

Borexstroke100.0 x 111.1 mm (3.9 x 4.4 inches)
ClutchMulti-plate with diaphragm spring in oil bath
Compression10.0:1
CoolingsystemAir
Displacement1746.0 ccm (106.54 cubic inches)
DrivelineChain 34/46 ratio primary drive
EnginedetailsV2, four-stroke
EnginetypeMilwaukee-Eight® 107
Exhaustsystem2-into-2 shotgun; catalyst in muffler
Fuelconsumption5.00 litres/100 km (20.0 km/l or 47.04 mpg)
FuelsystemInjection. Electronic Sequential Port Fuel Injection (ESPFI)
Gearbox6-speed
Greenhousegases116.0 CO2 g/km. (CO2 - Carbon dioxide emission)
Power86.0 HP (62.8 kW)) @ 5020 RPM
Torque149.2 Nm (15.2 kgf-m or 110.0 ft.lbs) @ 3000 RPM
TransmissiontypefinaldriveBelt

Other Specifications

ColoroptionsVivid Black, Billiard Red, River Rock Grey Denim/Black Denim, Midnight Crimson Red/Stone Washed White Pearl
Instruments5-inch analog speedometer with digital gear, odometer, fuel level, clock, trip, range and tachometer indication
LightHigh beam, neutral, low oil pressure, turn signals, engine diagnostics, security system (optional), 6-speed, low fuel warnings
StarterElectric

Physical Measures & Capacities

Dryweight291.0 kg (641.5 pounds)
Fuelcapacity18.90 litres (4.99 gallons)
Groundclearance120 mm (4.7 inches)
Oilcapacity4.70 litres (4.97 US quarts)
Overalllength2310 mm (90.9 inches)
Powerweightratio0.2955 HP/kg
Seatheight648 mm (25.5 inches) If adjustable, lowest setting.
Weightincloilgasetc304.4 kg (671.0 pounds)

About Harley-Davidson

Country of Origin: United States
Founder: William S. Harley, Arthur Davidson, Walter Davidson, William A. Davidson
Best Known For: V-twin cruisers, touring icons, H-D culture; also LiveWire electric spinoff

Company History

Founded in Milwaukee in 1903, Harley-Davidson grew from backyard shed to global symbol. Early board-trackers and military machines proved durability; postwar big twins defined American road culture with a cadence and silhouette that became shorthand for freedom. The company professionalized long-distance comfort—Electra Glide fairings, air shocks, and later sophisticated infotainment—while keeping a mechanical identity built on a 45° V-twin heartbeat. Harley also navigated reinvention: the Evolution engine restored reliability in the 1980s; rubber mounting tamed vibes; and fuel injection, ABS, and ride-by-wire brought modernity. The brand’s culture—H.O.G. rides, dealer events, customization—turns ownership into community. Recent decades saw expansion into liquid-cooled performance (Revolution X) and true adventure/sport segments (Pan America, Sportster S), while LiveWire broke ground in electric motorcycling. Historically, Harley’s significance extends beyond machines: it’s a maker of rituals and myth, exporting an American idea of the open road. The tension between heritage and innovation defines each new model year, but the throughline is tactile connection—torque-rich roll-on, slow idle, and a sense that the bike has a pulse.

Other Years

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