Harley Davidson Road King (2021)

The iconic Road King, a true modern classic that embodies the spirit of the open road. Its distinctive styling, born in the 1960s, is now powered by the mighty Milwaukee-Eight 107 engine, unleashing an exhilarating riding experience that’s as raw as it is refined.

With its Hiawatha headlamp and nacelle leading the charge, this touring machine is designed to take you on a journey of discovery. The Showa dual-bending valve front suspension and rear emulsion shocks work in harmony to provide a plush ride, while cast Impeller wheels and one-touch bags add to the touring experience.

But what truly sets the Road King apart is its engine character – a perfect blend of power, torque, and refinement. The Milwaukee-Eight 107 engine roars to life with a distinctive sound that’s unmistakably Harley-Davidson, and its four valves per cylinder ensure crisp throttle response and a truer, cleaner note.

Whether you’re carving through canyons or cruising down the highway, the Road King is designed to put you in control. With every mile, it’s clear that this motorcycle is more than just an engine – it’s a way of life.

Key Specifications

Engine Type	Four stroke, V-Twin, Milwaukee-Eight 107, Pushrod-operated, overhead valves with hydraulic, self-adjusting lifters, 4 valves per cylinder
Engine Capacity	1746 cc / 107 cub in.
Max Torque	151 Nm / 111.4 ft/lb @ 3250 rpm
Fuel Tank Capacity	6.0 US gallons / 22.7 L
Weight (Wet/Kerb)	836 lbs / 379 kg
Seat Height	26.3 inches / 668 mm

*n/a – information not provided by manufacturer

All Specifications

Make & Model

Model	Harley Davidson Road King
Year	2021

Engine

Engine Type	Four stroke, V-Twin, Milwaukee-Eight 107, Pushrod-operated, overhead valves with hydraulic, self-adjusting lifters, 4 valves per cylinder
Displacement	1746 cc / 107 cub in.
Bore x Stroke	100 x 111 mm / 3.937 x 4.374 in
Compression Ratio	10.0:1
Max Torque	151 Nm / 111.4 ft/lb @ 3250 rpm
Engine Management System	Electronic Sequential Port Fuel Injection (ESPFI)
Lubrication System	Pressurized, dry-sump with oil cooler
Cooling System	Air cooled
Exhaust	Chrome, 2-1-2 dual exhaust with tapered mufflers

Performance

Top Speed

n/a

*n/a – information not provided by manufacturer

Transmission

Clutch	Hydraulically actuated 9 plate wet, Assist & Slip
Gearbox	6 Speed
Gear Ratios	1st 9.593 2nd 6.65 3rd 4.938 4th 4 5th 3.407 6th 2.875
Final Drive	Belt

Electrical & Electronics System

Starter	Electric
ABS	Standard

Chassis & Suspension

Frame Type	Mild steel; tubular frame; two-piece stamped and welded backbone; cast and forged junctions; twin downtubes; bolt-on rear frame with forged fender supports; MIG welded Swingarm Mild steel; two-piece drawn and welded section; forged junctions; MIG welded
Front Suspension	49 mm forks, Dual Bending Valve
Front Suspension Travel	4.6 inches / 117 mm
Rear Suspension	Premium low height hand-adjustable rear shocks
Rear Suspension Travel	2.15 inches / 54.6 mm
Rake	26
Trail	170 mm / 6.7 in

Wheels & Brakes

Wheels	Black, Turbine Cast Aluminium
Front Wheel/Rim Size	9 Impeller Cast Aluminum
Front Tire Size	BW 130/80B17 65H
Rear Wheel/Rim Size	Impeller Cast Aluminum
Rear Tire Size	BW 180/65B16 81H
Front Brakes	2 x 300 mm disc, caliper type 32 mm, 4-piston fixed, dual floating rotors
Rear Brakes	Single 300 mm, caliper type 32 mm, 4-piston, fixed rotor
ABS	Standard

Dimension & Weights

Seat Height	26.3 inches / 668 mm
Wheelbase	64 inches / 1625 mm
Ground Clearance	135 mm / 5.3 in
Fuel Tank Capacity	6.0 US gallons / 22.7 L
Wet (kerb/curb) Weight	836 lbs / 379 kg
Dry Weight	362 kg/ 798 lbs

Features

Milwaukee-Eight 107 engine
Milwaukee-Eight 114 engine
Iconic look and distinctive sound
Massive torque
Crisper throttle response
Truer, cleaner sound
Four valves per cylinder
Single chain-driven cam
Dual spark plugs
Counter-balanced
Rubber mounted
Showa dual-bending valve front suspension
Rear emulsion shocks
Cast Impeller wheels
One-touch bags
Reflex dual disc linked Brembo brakes with ABS
Dual Halogen headlamps and fog lamps
Brighter turn signals and brake lights
Beefy steering head and front forks

*We strive to provide the most comprehensive and accurate specifications possible. However, certain details may not be available if the manufacturer did not disclose them or if the information is no longer publicly accessible. If you find any discrepancy with any data on this site, please feel free to let us know at contact@throttlecraze.com