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Touring Motorcycles

2021Harley-Davidson Road King

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The 2021 Harley-Davidson Road King is a classic American touring cruiser built for long-distance highway comfort and style. Its Milwaukee-Eight 107 V-twin engine delivers smooth, accessible power ideal for experienced cruiser riders seeking traditional aesthetics with modern reliability. Best known for commanding presence, iconic design, and genuine touring capability with exceptional low-end torque.

Capacity: 1746.0 ccm
Engine: V-Twin, four-stroke
Gearbox: 6-speed
Dry weight: 360.2 kg
Seat height: 668 mm
Power: 89.0 HP (65.0 kW) @ 5450 RPM

⇄ Compare with another bike ＋ Add to garage All model years

What’s new for the 2021 Harley-Davidson Road King

vs the 2020

Spec	2020	2021
Seat height	705 mm (27.8 inches)	668 mm (26.3 inches)

Other years 1996 1999 2000 2001 2002 2003 2004 2005 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022

How it rides

Editorial estimate from the spec sheet - not lab tested

Off-road & trail5%

Cornering35%

City riding40%

Daily riding60%

Touring95%

Two-up85%

Track10%

Best for: It's built for effortless long-distance highway cruising with a classic Harley touring character, not for outright speed or sporty cornering.
Built for: 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.

Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.

Will it fit you?

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Your height

Inseam (optional)

Units

At 668mm, a rider of 68.9" with a 31" (estimated) inseam will reach the ground with both feet flat on the 2021 Harley-Davidson Road King, with a cramped knee angle of around 75 degrees and a slightly forward riding position.

Assumes about 30mm of suspension sag once seated. This is an approximation from category-typical geometry, not a measurement of this bike or of you - sit on one before you buy.

More bikes at 750 mm or under — Short Kings →

Find bikes that fit your height →

Range and running costs

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Units

Currency

Fuel per litre

Riding a year

Based on the maker's published fuel consumption and tank size. Real-world figures depend on how and where you ride, and the last litres of a tank are reserve. Prices shown greyed are examples - type your own.

Full specifications

Engine

Capacity: 1746.0 ccm
Power: 89.0 HP (65.0 kW) @ 5450 RPM
CO2 Emissions: 140 CO2 g/km
EPA Est. Fuel Consumption: 5.96 L/100km (39.5 US mpg)
EPA CO Emissions: 2.8 CO g/km
Torque: 150.5 Nm (15.3 kgf-m) @ 3250 RPM
Engine type: V-Twin, four-stroke
Fuel consumption: 5.20 litres/100 km (19.2 km/l)
Power/weight ratio: 0.2471 HP/kg (dry)
Bore x stroke: 100.0 x 111.1 mm
Compression: 10.0:1
Cooling system: Air
Fuel system: Injection
Starting: Electric
Aspiration: Naturally aspirated
Valves per cylinder: 4
Lubrication system: Dry sump

Transmission

Gearbox: 6-speed
Transmission type: Manual
Final drive: Belt
Clutch: Multi-plate with diaphragm spring in oil bath

Dimensions & weight

Wheelbase: 1625 mm
Overall length: 2450 mm
Seat height: 668 mm
Dry weight: 360.2 kg
Wet weight: 375.6 kg
Fuel capacity: 22.70 litres
Ground clearance: 135 mm
Oil capacity: 4.90 litres
Carrying capacity: Saddle bags

Chassis & suspension

Front suspension: Telescopic fork
Rear suspension: Twin shocks
Rake (fork angle): 26.0°
Trail: 170 mm

Brakes & wheels

Front brakes: Double disc. ABS. 4-piston
Rear brakes: Single disc. ABS. 4-piston
ABS: Yes
Front tyre: 130/70-B18
Rear tyre: 180/55-B18

Other

Color options: Vivid Black, Billiard Red, Midnight Crimson Red/Stone Washed White Pearl
Comments: Windshield. Cruise control. Alarm.
Fuel Tank Material: Metal

Specs last verified against published sources: September 2026.

Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.

What changed, year to year

Differences highlighted

Specification	1996	2004	2011	2016	2021	2022
Capacity	1338 cc	1449 cc	1584 cc	1688 cc	1746 cc	1746 cc
Dry weight	—	329 kg	—	353 kg	360 kg	360 kg
Seat height	749 mm	692 mm	692 mm	715 mm	668 mm	668 mm
Fuel capacity	—	18.9 L	22.7 L	22.7 L	22.7 L	22.7 L

Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.

Rider Reviews

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MotorcycleDB

The 2021 Harley-Davidson Road King is a true icon in the world of motorcycles. With its classic design and powerful performance, this bike is a favorite among riders who crave the open road. The Road King features a Milwaukee-Eight 114 engine, delivering impressive torque and acceleration. Its comfortable seating and spacious saddlebags make it an ideal choice for long rides. The bike also comes equipped with modern technology, including a touchscreen infotainment system and advanced rider aids. Overall, the 2021 Harley-Davidson Road King is a timeless machine that offers a perfect balance of style, comfort, and performance.

If you're in the market for a top-of-the-line touring bike, the 2021 Harley-Davidson Road King is worth considering. With its legendary status and outstanding performance, this motorcycle delivers an unmatched riding experience. Whether you're cruising down the highway or exploring winding backroads, the Road King is sure to impress. Plus, its classic design and modern features make it a standout choice in the motorcycle market. If you're looking for a reliable and stylish touring bike, the 2021 Harley-Davidson Road King is a top contender.

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