(2021) Harley-Davidson FLHR Road King

The Hiawatha headlamp and nacelle were born in the ‘60s, but the power of the Milwaukee-Eight® 107 engine on the Road King® brings it all into right now, fast. The Showa® dual-bending valve front suspension and rear emulsion shocks put riders in control for a plush ride. And riders get cast Impeller wheels and one-touch bags. It’s a modern classic.

Technical Specification 

Model FLHR Road King®
Dimensions
Length 96.5 in. (2,450 mm)
Overall Width 37.8 in. (960 mm)
Overall Height 56.3 in. (1,430 mm)
Seat Height, Laden 26.3 in. (667 mm)
Seat Height, Unladen 27.8 in. (705 mm)
Ground Clearance 5.3 in. (135 mm)
Rake (steering head) (deg) 26
Fork Angle (deg) 29.25
Trail 6.7 in. (170 mm)
Wheelbase 64 in. (1,625 mm)
Tires, Type Dunlop® Harley-Davidson Series, bias blackwall front and rear
Tires, Front Model D408F
Tires, Front Specification BW 130/70B18 63H
Tires, Rear Model D407T
Tires, Rear Specification BW 180/55B18 80H
Fuel Capacity 6 gal. (22.7 l)
Reserve Fuel Capacity, Fuel Injection (warning light) 1 gal. (3.8 l)
Oil Capacity (w/filter) 5.2 qt. (4.9 l)
Transmission Capacity 1 qt. (.95 l)
Primary Chain Case Capacity 1.1 qts. (1 l)
Coolant Capacity N/A
Weight, As Shipped 794 lb. (360 kg)
Weight, In Running Order 828 lb. (375 kg)
Gross Vehicle Weight Rating 1,360 lb. (617 kg)
Gross Axle Weight Rating, Front 500 lb. (227 kg)
Gross Axle Weight Rating, Rear 927 lb. (420 kg)
Luggage Capacity -Volume 2.3 cu ft (0.064 m3)
Engine
Engine Milwaukee-Eight® 107
Valves Pushrod-operated, overhead valves with hydraulic, self-adjusting lifters; four valves per cylinder
Bore 3.937 in. (100 mm)
Stroke 4.374 in. (111.1 mm)
Displacement 107 cu in (1,746 cc)
Compression Ratio 10.0:1
Fuel System Electronic Sequential Port Fuel Injection (ESPFI)
Air Cleaner Paper, washable
Exhaust Chrome, 2-1-2 dual exhaust with tapered mufflers
Lubrication System Pressurized, dry-sump with oil cooler
Drivetrain
Primary Drive Chain, 34/46 ratio
Final Drive Belt, 32/68 ratio
Clutch Mechanically actuated 10 plate wet, Assist and Slip
Transmission 6-Speed Cruise Drive®
Gear Ratios (overall) 1st 9.593
Gear Ratios (overall) 2nd 6.65
Gear Ratios (overall) 3rd 4.938
Gear Ratios (overall) 4th 4
Gear Ratios (overall) 5th 3.407
Gear Ratios (overall) 6th 2.875
Chassis
Frame 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 Fork 49 mm Dual Bending Valve
Rear Shocks Premium standard height hand-adjustable rear suspension
Wheels, Front Type Slicer II Cast Aluminum
Wheels, Front Width 3.5 in. (89 mm)
Wheels, Front Height 18 in. (457 mm)
Wheels, Rear Type Slicer II Cast Aluminum
Wheels, Rear Width 5 in. (127 mm)
Wheels, Rear Height 18 in. (457 mm)
Brakes, Caliper Type 32 mm, 4-piston fixed front and rear
Brakes, Rotor Type Dual floating rotors (front), fixed rotor (rear)
Brakes, Front Diameter 11.8 in. (300 mm)
Brakes, Front Thickness 0.2 in. (5.1 mm)
Brakes, Front is dual Yes
Brakes, Rear Diameter 11.8 in. (300 mm)
Brakes, Rear Thickness 0.28 in. (7.1 mm)
Brakes, Anti-Lock Braking System (ABS) Standard
Suspension Travel, Front 4.6 in. (117 mm)
Suspension Travel, Rear 3 in. (76 mm)
Performance
Engine Torque Testing Method J1349
Engine Torque 111 ft-lb (151 Nm)
Engine Torque (rpm) 3,250
Lean Angle Testing Method J1168
Lean Angle, Right (deg.) 32
Lean Angle, Left (deg.) 32
Fuel Economy Testing Method Estimated City/Hwy
Fuel Economy 43 mpg (5.5 l/100 km)
Electric
Battery Sealed, maintenance-free, 12V, 28-amp/hour, 405 cca (per Battery Council International Rating)
Charging Three-phase, 48-amp system (600W @ 13V, 2000 rpm, 625W max power @ 13V)
Starting 1.6 kW electric with solenoid shift starter motor engagement
Lights (as per country regulation), Headlamp Dual halogen headlight 55-watt 625 lumen low beam, 65-watt 1,570 lumen high beam with switchable 26 watt 440 lumen halogen fog lights. Total of 986 lumen output at low beam with fog lights.
Lights (as per country regulation), Tail/Stop 8W/28W
Lights (as per country regulation), Front Signal Lights 8W/28W
Lights (as per country regulation), Indicator Lamps 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
Lights, Rear Turn Signals N/A
Gauges Gauges styled to complement each vehicle. Display features odometer, trip A, trip B, range to empty and gear indicator; and larger tell-tale indicators.
Auxiliary Lamps Two @ 30W each (except where prohibited by law)
Electric Power Outlet N/A
GPS System N/A
Reverse Gear N/A
Warranty And Service
Warranty 24 months (unlimited mileage)
Service Interval First 1,000 miles (1,600 km), every 5,000 miles (8,000 km) thereafter

Images (click to enlarge)

  • FLHR Road King red

  • FLHR Road King white

  • FLHR Road King spoke and disk

  • FLHR Road King windshield

  • FLHR Road King front

  • FLHR Road King riding position

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