What category is the 2021 Harley-Davidson Road King Special?

The 2021 Harley-Davidson Road King Special has a Category of Touring.

What is the engine size of the 2021 Harley-Davidson Road King Special?

The 2021 Harley-Davidson Road King Special has a Capacity: of 1868.0 ccm (113.99 cubic inches).

What type of engine does the 2021 Harley-Davidson Road King Special have?

The 2021 Harley-Davidson Road King Special has a Engine type of V2, four-stroke.

What is the engine power of the 2021 Harley-Davidson Road King Special?

The 2021 Harley-Davidson Road King Special has a Power of 100.0 HP (73.0 kW) @ 5000 RPM.

What is the torque of the 2021 Harley-Davidson Road King Special?

The 2021 Harley-Davidson Road King Special has a Torque of 160.0 Nm (16.3 kgf-m or 118.0 ft.lbs) @ 3250 RPM.

Is the 2021 Harley-Davidson Road King Special air cooled or liquid cooled?

The 2021 Harley-Davidson Road King Special has a Cooling system of Air.

How many gears does the 2021 Harley-Davidson Road King Special have?

The 2021 Harley-Davidson Road King Special has a Gearbox of 6-speed.

What is the fuel consumption of the 2021 Harley-Davidson Road King Special?

The 2021 Harley-Davidson Road King Special has a Fuel consumption of 5.23 litres/100 km (19.1 km/l or 44.98 mpg).

How much does the 2021 Harley-Davidson Road King Special weigh?

The 2021 Harley-Davidson Road King Special has a Dry weight of 351.1 kg (774.0 pounds).

How much does the 2021 Harley-Davidson Road King Special weigh?

The 2021 Harley-Davidson Road King Special has a Weight incl. oil, gas, etc of 366.1 kg (807.0 pounds).

What is the seat height of the 2021 Harley-Davidson Road King Special?

The 2021 Harley-Davidson Road King Special has a Seat height of 671 mm (26.4 inches) If adjustable, lowest setting..

Harley-Davidson Road King Special - 2021 Specifications and Reviews

Name: 2021 Harley-Davidson Road King Special
Brand: Harley-Davidson

The 2021 Harley-Davidson Road King Special is a classic heavyweight cruiser touring motorcycle designed for riders seeking long-distance comfort with authentic Harley styling. Powered by the Milwaukee-Eight 114 V-twin engine producing 100 horsepower and 160 Nm of torque, it delivers smooth, reliable performance ideal for highway cruising and extended road trips. Known for its iconic design, premium features, and commanding presence, the Road King Special appeals to experienced riders who value tradition and touring capability.

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2021

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General information
Price as new	3.6 See the detailed rating of touring capabilities, reliability, accident risk, etc. Compare with any other motorbike.
Category	Touring
Year	2021
Model	Harley-Davidson Road King Special

Engine and Transmission Specifications
Greenhouse gases	121.3 CO2 g/km. (CO2 - Carbon dioxide emission)
Fuel consumption	5.23 litres/100 km (19.1 km/l or 44.98 mpg)
Driveline	Chain, 34/46 ratio primary drive
Clutch	Multi-plate with diaphragm spring in oil bath
Transmission type	Belt (final drive)
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	102.0 x 114.3 mm (4.0 x 4.5 inches)
Compression	10.5:1
Torque	160.0 Nm (16.3 kgf-m or 118.0 ft.lbs) @ 3250 RPM
Power	100.0 HP (73.0 kW) @ 5000 RPM
Engine details	Milwaukee-Eight 114
Engine type	V2, four-stroke
Capacity:	1868.0 ccm (113.99 cubic inches)
Brakes, suspension, Frame and wheels
Rear brakes	Single disc. ABS. 4-piston
Front brakes	Double disc. ABS. 4-piston
Rear tire	180/55-B18
Front tire	130/60-B19
Rear Suspension	Twin shocks
Front Suspension	Telescopic fork
Trail	175 mm (6.9 inches)
Rake (fork angle)	26.0°

Physical measures and capacities
Oil capacity	4.90 litres (5.18 US quarts)
Fuel capacity	22.71 litres (6.00 US gallons)
Wheelbase	1625 mm (64.0 inches)
Ground clearance	124 mm (4.9 inches)
Overall length	2420 mm (95.3 inches)
Seat height	671 mm (26.4 inches) If adjustable, lowest setting.
Power/weight ratio	0.2848 HP/kg
Weight incl. oil, gas, etc	366.1 kg (807.0 pounds)
Dry weight	351.1 kg (774.0 pounds)
Other specs
Maintenance	Find parts, fluids, filters, maintenance tools and service items on eBay
Comments	Cruise control. Security system.
Carrying capacity	Saddle bags
Light	High beam, running lights, directional light bar, neutral, low oil pressure, engine diagnostics, turn signals, battery, security system, low fuel warning, cruise control, ABS, Gear/RPM display, miles to empty display
Instruments	Display features odometer, trip A, trip B, range to empty and gear indicator; and larger tell-tale indicators.
Starter	Electric
Color options	Vivid Black, Deadwood Green, Snake Venom Green, Black Jack Metallic
Maintenance and service data
Fork tube size	49 mm (1.9 inches)
Tire pressure rear	41 PSI (2.8 Bar or 280 kPa)
Tire pressure front	36 PSI (2.5 Bar or 250 kPa)
Belt teeth	140
Sprockets	32/68 (front/rear)
Idle speed	850 RPM
Spark plugs	NGK CR9E, NGK CR9EIX
Battery	YIX30L

Performance Profile & Rider Fit

87 hp

Peak Power

5.2s

0-60 mph

Best For

Track10%

City40%

Cornering45%

Daily Riding60%

Touring90%

Passenger85%

Rider Profile

Best For	Best for intermediate to experienced riders comfortable managing 800+ lbs of low-slung weight; not a beginner's first bike due to sheer mass.
Purpose	A stripped-down bagger built for relaxed long-haul highway cruising and open-road touring with saddlebags, windshield and cruise control.
Rider Fit	Low 27.4in seat and forward controls give a laid-back stance; very heavy at 820 lbs wet, but weight carries low for planted feel once rolling.
Character	Classic American V-twin muscle: massive 165Nm torque from the Milwaukee-Eight 114, effortless roll-on, and a commanding, nostalgic road presence.
Not Ideal For	Not for off-road, tight-corner sport riding, track days, or riders wanting a light, flickable machine for stop-and-go city commuting.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.

Rider Fit Visualizer

2021 Harley-Davidson Road King Special Rider Ergonomics Assessment

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Feet:

At 671mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with both feet flat on the 2021 Harley-Davidson Road King Special, with a cramped knee angle of around 75 degrees and a slightly forward riding position.

Data quality: measured. Assumes about 30mm of suspension sag once seated (a typical street-bike rule of thumb - stiffer or softer suspension will vary). This is an approximation from category-typical geometry and generic body proportions, not a measurement of this specific bike or you - sit on it before you buy.

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Rider Reviews

Total comments: 1

MotorcycleDB Review

The 2021 Harley-Davidson Road King Special is a powerful and stylish motorcycle that delivers an exceptional riding experience. With its Milwaukee-Eight 114 engine and sleek design, this bike is perfect for those who crave power and performance. The Road King Special also features a bold and aggressive look, with blacked-out finishes and a stretched saddlebags, making it a standout on the road. In addition to its impressive performance, the 2021 Harley-Davidson Road King Special offers a comfortable and smooth ride, thanks to its responsive suspension and ergonomic design. Whether you're cruising on the open highway or navigating through city streets, this motorcycle handles with ease and precision. Overall, the Road King Special is a top-tier motorcycle that offers a perfect blend of power, style, and comfort for riders who demand the best.