Model:
Touring FLHRS Road King Custom
Model Variant:
Road King Custom (FLHRS), dropped and streamlined custom styling within the FL Touring family
Production Years Covered:
2006 (Twin Cam 88B era Road King Custom)
Target Audience:
Riders seeking classic American touring design with custom styling for long-distance comfort and everyday riding
Market Segment:
Full-size cruiser / touring motorcycle
Key Advantage:
Blend of classic Road King heritage with dropped, streamlined custom aesthetics and proven Twin Cam 88B reliability
Competitors:
Honda VTX1300, Yamaha Road Star, Indian Chief (of the era)
Engine:
Air-cooled Twin Cam 88B V-Twin, 1450cc
Comfort:
Electronic cruise control, touring ergonomics
Styling:
Slammed custom seat position with detachable windshield
Manual Type:
Service Repair Manual (factory-style workshop manual)
Coverage Areas:
Engine, transmission, electrical system, fuel system, suspension, brakes, bodywork
Delivery Method:
Instant digital download
Engine:
Twin Cam 88B V-Twin: removal, disassembly, inspection, rebuild, reassembly
Fuel System:
Electronic fuel injection components, fuel tank, throttle body
Transmission:
5-speed Cruise Drive transmission, primary drive, clutch service
Drive Train:
Belt final drive inspection and replacement
Electrical System:
Wiring diagrams, charging system, starting system, ignition
Suspension:
Front telescopic forks and rear air-adjustable shocks
Brakes:
Hydraulic disc brakes: pads, rotors, calipers, master cylinders, fluid
Wheels and Tires:
Wheel service, bearing replacement, tire removal and balancing
Bodywork:
Fairing, fenders, saddlebags, detachable windshield service
Preventative Maintenance:
Scheduled service, fluid changes, adjustments
Engine Rebuild:
Complete engine and transmission rebuild procedures
Troubleshooting:
Symptom-based diagnostics for engine, electrical, and drivetrain
Diagnostics:
EFI fault code retrieval and diagnostic procedures
Torque Specifications:
Fastener torque values throughout all procedures
Special Tools:
Required special tool listings and usage instructions
Detail Level:
Step-by-step instructions with specifications for professional and DIY use
Diagrams:
High-quality diagrams and exploded views
Photos and Illustrations:
Detailed illustrations supporting each procedure
Parts Identification:
Component identification in exploded views
Fluid Capacities:
Oil, transmission, and primary fluid capacities specified
Specifications Tables:
Wear limits and service specifications included
File Format:
PDF (searchable, bookmarked, zoomable)
Compatibility:
Windows, macOS, Linux, iOS, and Android — any device with a PDF reader
Requirements:
A PDF reader application (e.g. Adobe Acrobat Reader, free)
Searchability:
Fully text searchable for fast lookup of any topic
Print Quality:
High-resolution digital pages, printable at full clarity
Binding Type:
N/A — digital download, no physical binding
Paper Type:
N/A — digital download, no physical paper
Engine Type:
Air-cooled V-Twin, Twin Cam 88B
Displacement:
1450cc (88 cubic inches)
Engine Options:
Single engine option for 2006 Road King Custom
Bore and Stroke:
95.3 mm x 101.6 mm (3.75 in x 4.00 in)
Horsepower:
Estimated 65-70 HP
Torque:
Estimated 85-90 lb-ft
Fuel Delivery:
Electronic fuel injection (EFI)
Fuel Capacity:
Approximately 5 gallons (18.9 L)
Wheelbase:
Approximately 63.5 in (1613 mm)
Length:
Approximately 94 in (2388 mm)
Seat Height:
Approximately 26.6 in (675 mm), slammed custom position
Curb Weight:
Approximately 760 lb (345 kg)
Crash Test Information:
N/A - motorcycles are not subject to government crash test ratings
Brakes:
Hydraulic disc brakes front and rear
Lighting:
Headlamp and full signal lighting system
Frame:
Full-size touring frame designed for stability at highway speeds
ABS:
N/A - not offered on the 2006 Road King Custom
Audio System:
N/A - base Road King Custom not equipped with factory audio; accessory kits available
Instrumentation:
Analog speedometer with odometer and indicator lamps
Cruise Control:
Electronic cruise control standard
Rider Aids:
N/A - no electronic rider aids; conventional controls
Engine Oil and Filter:
Approximately every 5,000 miles
Primary and Transmission Fluid:
Approximately every 10,000 miles
Wheel and Fork Services:
Approximately every 10,000-20,000 miles per schedule
Engine Oil:
SAE 20W-50 (H-D or equivalent synthetic) per manual specifications
Transmission Fluid:
H-D Formulated gear oil or equivalent per manual
Primary Chaincase:
Primary lubricant per factory specification
Brake Fluid:
DOT 4 hydraulic brake fluid
Known Issues / Wear Items
Cam Chain Tensioners:
Twin Cam hydraulic cam tensioners are a known wear item on 88/88B engines
Belt Drive:
Periodic belt inspection and adjustment
Battery and Connections:
Check charging system and terminal corrosion
Brake Pads and Rotors:
Routine wear inspection on disc brakes
Manufacturer:
Harley-Davidson, founded 1903, long-standing American motorcycle manufacturer
Model Lineage:
Road King introduced 1994 as part of the FL Touring family; Custom variant added 2002 with slammed styling
2006 Position:
Twin Cam 88B engine year, final years before Twin Cam 96 displacement increase in 2007
Production Location:
York, Pennsylvania, USA
