2006 Harley-Davidson FLHRI Road King Technical Analysis & Specification Breakdown
At the heart of the 2006 Harley-Davidson FLHRI Road King custom - cruiser motorcycle, Harley-Davidson utilizes a 1442.2 cc (88 cu in) v2, four-stroke layout. In factory specification, maximum torque reaches 116.6 Nm (86 lb-ft) at 3,500 rpm, transferring power to the rear wheel through a 5-speed gearbox and belt final drive. Internal engine geometry specifies a bore and stroke of 95.3 x 101.6 mm (3.8 x 4.0 inches) with a 8.9:1 compression ratio.
On the scales, the FLHRI Road King measures 342 kg (754 lbs) wet (curb). Rider ergonomics and chassis geometry center around a 704 mm (27.7 in) seat height — giving shorter riders and urban commuters confident flat-foot reach at traffic stops, combined with a 1,613 mm (63.5 in) wheelbase engineered for planted straight-line stability. The 18.92-liter (5 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Within MotoLibrary's Harley-Davidson archive, this model family spans 3 indexed model years from 2004 to 2006, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Standover Height
704 mm (27.7 in)
Engine
Displacement1442.2 ccm (88.00 cubic inches)
Engine TypeV2, four-stroke
Engine DetailsV2, four-stroke
Torque116.6 Nm (11.9 kgf-m or 86.0 ft.lbs) @ 3500 RPM
Compression8.9:1
Bore x Stroke95.3 x 101.6 mm (3.8 x 4.0 inches)
Fuel SystemInjection. Electronic Sequential Port Fuel Injection (ESPFI)
Fuel ControlDouble Overhead Cams/Twin Cam (DOHC)
Transmission
Gearbox5-speed
Final DriveBelt (final drive)
ClutchMulti-plate clutch with diaphragm spring in oil bath
Performance
ExhaustChrome, cross-over duals
Chassis
Rake26.0°
Trail157 mm (6.2 inches)
Wheelbase1613 mm (63.5 inches)
Ground Clearance130 mm (5.1 inches)
Wheels & Brakes
Front TyreMT90-B16
Rear TyreMu85-B16
Front BrakesDouble disc
Rear BrakesSingle disc
Dimensions & Weight
Dry Weight327.9 kg (723.0 pounds)
Weight incl.342.0 kg (754.0 pounds)
Seat Height704 mm (27.7 inches) If adjustable, lowest setting.
Alt. Seat Height744 mm (29.3 inches) If adjustable, highest setting.
Overall Length2380 mm (93.7 inches)
Fuel Capacity18.92 litres (5.00 US gallons)
Other
Color OptionsVivid black, black cherry, black pearl, fire red pearl, deep cobalt; glacier white pearl, two-tone rich sunglo blue and chopper blue, two-tone chopper blue and brilliant silver, two-tone black cherry and black pearl, two-tone fire red pearl and vivid blac
Notes
Large Hiawatha headlight and chrome nacelle. Black powder-coated engine with chrome covers. Detachable windshield. GTX-nylon alloy lockable hard saddlebags. Large, tank-mounted speedometer.
Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.
Torque
Torque is useful for judging real-world pull, especially for touring, commuting and loaded riding.
Seat Height
Check the seat height against your inseam and riding posture before choosing a motorcycle.
Weight
Compare weight carefully because it affects low-speed handling, parking and confidence.
Fuel Capacity
Fuel capacity helps estimate touring range and how often you may need to stop.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
