2018
Harley-Davidson Road King Classic - Specifications & Review

Article Complete Info
| Articleid | 415726 |
|---|---|
| Category | Touring |
| Make | Harley-Davidson |
| Model | Road King Classic |
| Year | 2018 |
Chassis, Suspension, Brakes & Wheels
| Frontbrakes | Double disc. Optional ABS. 4-piston |
|---|---|
| Frontsuspension | Telescopic fork |
| Fronttyre | MT90-B16 |
| Rake | 26.0° |
| Rearbrakes | Single disc. Optional ABS. 4-piston |
| Rearsuspension | Twin shocks |
| Reartyre | 180/65-B16 |
| Trail | 170 mm (6.7 inches) |
Engine & Transmission
| Borexstroke | 100.0 x 111.1 mm (3.9 x 4.4 inches) |
|---|---|
| Clutch | Multi-plate with diaphragm spring in oil bath |
| Compression | 10.0:1 |
| Coolingsystem | Air |
| Displacement | 1687.97 ccm (103.00 cubic inches) |
| Driveline | Chain, 34/46 ratio primary drive |
| Enginedetails | V2, four-stroke |
| Enginetype | Milwaukee-Eight® 107, Integrated Oil-Cooler |
| Exhaustsystem | Chrome, 2-1-2 dual exhaust with tapered mufflers |
| Fuelconsumption | 4.90 litres/100 km (20.4 km/l or 48.00 mpg) |
| Fuelsystem | Injection. Electronic Sequential Port Fuel Injection |
| Gearbox | 6-speed |
| Greenhousegases | 113.7 CO2 g/km. (CO2 - Carbon dioxide emission) |
| Lubricationsystem | Dry sump |
| Power | 89.00 HP (65.0 kW)) @ 5450 RPM |
| Torque | 150.00 Nm (15.3 kgf-m or 110.6 ft.lbs) @ 3200 RPM |
| Transmissiontypefinaldrive | Belt |
Other Specifications
| Carryingcapacity | Saddle bags |
|---|---|
| Coloroptions | Vivid Black, Bonneville Salt Pearl, Silver Fortune/Sumatra Brown, Twisted Cherry/Silver Fortune, Olive Gold/Black Tempest |
| Comments | Windshield. |
| Instruments | Tank-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 |
| Light | High 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) |
| Starter | Electric |
Physical Measures & Capacities
| Dryweight | 362.0 kg (798.1 pounds) |
|---|---|
| Fuelcapacity | 22.71 litres (6.00 gallons) |
| Groundclearance | 125 mm (4.9 inches) |
| Oilcapacity | 3.80 litres (0.25 quarts) |
| Overalllength | 2,420 mm (95.3 inches) |
| Powerweightratio | 0.2459 HP/kg |
| Seatheight | 715 mm (28.1 inches) If adjustable, lowest setting. |
| Weightincloilgasetc | 376.0 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.
