Harley-Davidson Road King Classic - Specifications & Review

Road King Classic

Article Complete Info

Articleid415726
CategoryTouring
MakeHarley-Davidson
ModelRoad King Classic
Year2018

Chassis, Suspension, Brakes & Wheels

FrontbrakesDouble disc. Optional ABS. 4-piston
FrontsuspensionTelescopic fork
FronttyreMT90-B16
Rake26.0°
RearbrakesSingle disc. Optional ABS. 4-piston
RearsuspensionTwin shocks
Reartyre180/65-B16
Trail170 mm (6.7 inches)

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
Displacement1687.97 ccm (103.00 cubic inches)
DrivelineChain, 34/46 ratio primary drive
EnginedetailsV2, four-stroke
EnginetypeMilwaukee-Eight® 107, Integrated Oil-Cooler
ExhaustsystemChrome, 2-1-2 dual exhaust with tapered mufflers
Fuelconsumption4.90 litres/100 km (20.4 km/l or 48.00 mpg)
FuelsystemInjection. Electronic Sequential Port Fuel Injection
Gearbox6-speed
Greenhousegases113.7 CO2 g/km. (CO2 - Carbon dioxide emission)
LubricationsystemDry sump
Power89.00 HP (65.0 kW)) @ 5450 RPM
Torque150.00 Nm (15.3 kgf-m or 110.6 ft.lbs) @ 3200 RPM
TransmissiontypefinaldriveBelt

Other Specifications

CarryingcapacitySaddle bags
ColoroptionsVivid Black, Bonneville Salt Pearl, Silver Fortune/Sumatra Brown, Twisted Cherry/Silver Fortune, Olive Gold/Black Tempest
CommentsWindshield.
InstrumentsTank-mounted electronic speedometer with odometer, time-of-day clock on odometer; dual trip meter; low fuel indicator light and mileage countdown feature; low oil pressure indicator light; engine diagnostics readout; LED indicator lights; 6-speed indicator light
LightHigh beam, running lights, front fender running lights, directional light bar, neutral, low oil pressure, engine diagnostics, turn signals, security system (optional), 6-speed, low fuel warning, cruise control (optional), ABS (optional)
StarterElectric

Physical Measures & Capacities

Dryweight362.0 kg (798.1 pounds)
Fuelcapacity22.71 litres (6.00 gallons)
Groundclearance125 mm (4.9 inches)
Oilcapacity3.80 litres (0.25 quarts)
Overalllength2,420 mm (95.3 inches)
Powerweightratio0.2459 HP/kg
Seatheight715 mm (28.1 inches) If adjustable, lowest setting.
Weightincloilgasetc376.0 kg (828.9 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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