14 August. Friday 2026
Harley-Davidson Road King - 2018 Specifications and Reviews
The 2018 Harley-Davidson Road King is a classic cruiser designed for riders seeking comfort and commanding presence on long highway rides. Known for its iconic styling, low seat height, and spacious saddlebags, it delivers smooth cruising capability with its air-cooled engine and comfortable ergonomics. This bike excels as a laid-back touring machine that prioritizes rider comfort and timeless American motorcycle aesthetics.
2018
General information | |
| Category | Touring |
| Year | 2018 |
| Model | Harley-Davidson Road King |
| | |
Engine and Transmission Specifications | |
| Exhaust system | Chrome, 2-1-2 dual exhaust with tapered mufflers |
| Greenhouse gases | 129.9 CO2 g/km. (CO2 - Carbon dioxide emission) |
| Fuel consumption | 5.60 litres/100 km (17.9 km/l or 42.00 mpg) |
| Driveline | Chain, 34/46 ratio primary drive |
| Clutch | Multi-plate with diaphragm spring in oil bath |
| Transmission type,final drive | Belt |
| Gearbox | 6-speed |
| Cooling system | Air |
| Lubrication system | Dry sump |
| Fuel control | Double Overhead Cams/Twin Cam (DOHC) |
| Fuel system | Injection. Electronic Sequential Port Fuel Injection |
| Bore x Stroke | 100.0 x 111.1 mm (3.9 x 4.4 inches) |
| Compression | 10.0:1 |
| Torque | 150.00 Nm (15.3 kgf-m or 110.6 ft.lbs) @ 3200 RPM |
| Power | 89.00 HP (65.0 kW) @ 5450 RPM |
| Engine details | Milwaukee-Eight® 107, Integrated Oil-Cooler |
| Engine type | V2, four-stroke |
| | |
Brakes, suspension, Frame and wheels | |
| Wheels | Impeller Cast Aluminum |
| Rear brakes | Single disc. Optional ABS. 4-piston |
| Front brakes | Double disc. Optional ABS. 4-piston |
| Rear tyre | 180/65-B16 |
| Front tyre | 130/80-B17 |
| Rear Suspension | Twin shocks |
| Front Suspension | Telescopic fork |
| Trail | 170 mm (6.7 inches) |
| Rake (fork angle) | 26.0° |
Physical measures and capacities | |
| Oil capacity | 3.80 litres (0.25 quarts) |
| Fuel capacity | 22.71 litres (6.00 gallons) |
| Wheelbase | 1,625 mm (64.0 inches) |
| Ground clearance | 135 mm (5.3 inches) |
| Overall length | 2,450 mm (96.5 inches) |
| Seat height | 705 mm (27.8 inches) If adjustable, lowest setting. |
| Power/weight ratio | 0.2452 HP/kg |
| Weight incl. oil, gas, etc | 379.0 kg (835.6 pounds) |
| Dry weight | 363.0 kg (800.3 pounds) |
Other specs | |
| Maintenance | Find parts, fluids, filters, maintenance tools and service items on eBay |
| Comments | Windshield. Cruise control. |
| Carrying capacity | Saddle bags |
| 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) |
| 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 |
| Starter | Electric |
| Color options | Vivid Black, Twisted Cherry, Silver Fortune, Electric Blue/Silver Fortune, Olive Gold/Black Tempest, Hard Candy Shattered Flake |
Performance Profile & Rider Fit
89 hp
Peak Power
5.2s
0-60 mph
Best For
Track10%
City40%
Cornering35%
Daily Riding60%
Touring95%
Passenger85%
Rider Profile
| Best For | This is a bike best suited to riders who already have experience handling heavy motorcycles at low speeds and in traffic. |
| Purpose | It's built for effortless long-distance highway cruising with a classic Harley touring character, not for outright speed or sporty cornering. |
| Rider Fit | The low seat height helps shorter riders, but the substantial dry weight over 360 kg demands confident strength and balance when maneuvering at a standstill or parking. |
| Character | A laid-back, torque-rich V-twin cruiser that rewards relaxed throttle inputs and steady, sweeping roads over aggressive riding. |
| Not Ideal For | This is not the right bike for riders wanting sharp handling, off-road capability, or a lightweight machine for quick city darting. |
Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.
Rider Reviews
Total comments: 1
MotorcycleDB Review
The 2018 Harley-Davidson Road King is a powerful and stylish motorcycle that offers a smooth and comfortable ride. With its classic design and modern features, the Road King is a standout in the Harley-Davidson lineup. The Milwaukee-Eight 107 engine provides ample power for long rides, while the adjustable rear suspension allows for a customizable riding experience. The Road King also includes convenient features such as a one-touch saddlebag latch and cruise control, making it an ideal choice for riders looking for both performance and comfort. Overall, the 2018 Harley-Davidson Road King is a top-tier motorcycle that delivers exceptional performance and style. Its classic design and modern features make it a standout in the Harley-Davidson lineup, and its powerful engine and comfortable ride make it a great choice for riders looking for a versatile and reliable motorcycle. Whether you're cruising on the open road or navigating city streets, the Road King is sure to impress with its combination of power, comfort, and convenience features.Add a Comment
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