🏷️ Basic Information

Make:

Harley-Davidson

Model:

FLHR Road King

Year:

2010

Chassis Code:

FLHR

Platform Generation:

This generation of the Road King, based on the Touring platform, has seen continuous evolution, with the 2010 model representing a mature iteration of its design and engineering.

👋 Introduction

Segment:

Harley-Davidson's flagship large-displacement cruiser, renowned for its classic styling, touring comfort, and V-twin character.

Target Audience:

Touring riders, cruising enthusiasts, and owners who prefer traditional American motorcycle aesthetics and performance.

Competitors 2010:

Indian Chief Vintage, Victory Kingpin, Honda Gold Wing (though more touring-focused), and other premium American and European cruisers.

Styling:

Iconic cruiser styling with a large, comfortable saddle, spacious saddlebags, and chrome accents.

Ergonomics:

Designed for long-distance comfort with a relaxed riding position, floorboards, and handlebar setup.

Powertrain:

The robust Twin Cam 103 V-twin engine provides ample torque for effortless cruising and passing.

📋 Manual Details

Primary Coverage:

Complete factory service and repair for the 2010 Harley-Davidson FLHR Road King.

Secondary Coverage:

Includes maintenance, troubleshooting, diagnostics, and repair procedures.

Estimated Pages:

Hundreds (specific count not provided, but indicative of comprehensive coverage).

Type:

Factory Service Manual / Repair Manual

Language:

English

Format:

PDF Download

📖 Manual Coverage

Engine:

Detailed coverage of the Twin Cam 103 engine, including lubrication, fuel delivery, ignition, cooling, and emissions control.

Transmission:

Comprehensive information on the 6-speed Cruise Drive transmission, including clutch, gearbox, and final drive.

Chassis Suspension:

In-depth coverage of front forks (including potential air-assist), rear shock absorbers, swingarm, and frame.

Brakes:

Detailed procedures for hydraulic brake systems, including caliper servicing, master cylinder maintenance, and bleeding.

Electrical System:

Extensive coverage of wiring diagrams, charging system, ignition system, lighting, instrumentation, and accessory circuits.

Fuel System:

Detailed information on the Electronic Sequential Port Fuel Injection (ESPFI) system, including sensors, injectors, and fuel pump.

Bodywork Trim:

Coverage of fairing, fenders, fuel tank, seating, and luggage components.

Routine Maintenance:

Oil changes, filter replacements, spark plug service, air cleaner maintenance, brake fluid checks, and tire pressure adjustments.

Troubleshooting:

Systematic diagnostic procedures for common and complex issues across all major vehicle systems.

Repair Overhaul:

Step-by-step instructions for component disassembly, repair, reassembly, and adjustment for all major systems.

Diagnostics:

Emphasis on diagnostic trouble codes (DTCs) and using appropriate Harley-Davidson diagnostic tools.

Special Tools:

Identification and usage of specialized tools required for specific repair and maintenance procedures.

Depth:

Comprehensive, from basic owner maintenance to full engine and transmission rebuilds, including electrical system diagnostics and repair.

📊 Manual Specifications

Format:

PDF

Searchability:

Likely searchable text, enabling quick navigation to specific topics.

Printability:

Designed to be printable, allowing for a physical copy for workshop use.

Recommended Binding:

When printed, a comb binding or spiral binding is recommended for lay-flat usability.

Recommended Paper:

Durable, thicker paper stock is advisable for workshop environments to withstand grease and wear.

⚙️ Engine Specifications

Engine Type:

Air-cooled, 45-degree V-twin, Twin Cam 103

Displacement:

1690 cc (103 cubic inches)

Bore X Stroke:

3.875 in. x 4.38 in. (98.4 mm x 111.3 mm)

Compression Ratio:

9.6:1 (typical for Twin Cam 103)

Horsepower:

Approximately 70-75 HP (estimated, as Harley-Davidson typically rates torque)

Torque:

Approximately 96-100 lb-ft @ 3500 RPM (estimated for Twin Cam 103)

Fuel Delivery:

Electronic Sequential Port Fuel Injection (ESPFI)

Fuel Type:

Unleaded gasoline, minimum 91 octane (R+M)/2

Oil Type:

Harley-Davidson SYN3 Full Synthetic Motorcycle Lubricant or equivalent API SG, Jaso FD, or JASO MA certified oil.

Oil Capacity:

Approximately 4.0 US quarts (3.8 L) with filter change.

🔧 Transmission

Type:

6-speed Cruise Drive

Clutch Type:

Clutch: Wet, multi-plate, hydraulic actuation.

Drive Type:

Primary Drive: Chain. Final Drive: Belt.

Transmission Fluid Type:

Harley-Davidson Formula + Transmission and Primary Chaincase Lubricant or equivalent.

Transmission Fluid Capacity:

Approximately 1.0 US quart (0.95 L).

📐 Dimensions

Length:

Approximately 93.7 in. (2380 mm)

Width:

Approximately 35.0 in. (889 mm)

Height:

Approximately 53.5 in. (1359 mm)

Dry Weight:

Approximately 718 lbs (326 kg)

Wet Weight:

Approximately 755 lbs (342 kg) (estimated, with fluids)

Gross Vehicle Weight Rating:

Approximately 1280 lbs (580 kg)

Front Tire:

130/90B16 67H

Rear Tire:

150/80B16 77H

Wheel Type:

Chrome aluminum laced wheels (standard for FLHR).

🛡️ Safety Features

Brakes:

Standard hydraulic disc brakes front and rear. Anti-lock Braking System (ABS) was an optional feature for this model year.

Lighting:

Halogen headlight, auxiliary passing lamps, and LED tail light/brake light.

Frame Construction:

Steel, cradle frame and swingarm construction for stability and ride quality.

💡 Technology Features

Audio System:

The FLHR Road King typically featured a radio with AM/FM, CD player, and speaker system, often integrated into the fairing or handlebar-mounted controls.

Connectivity:

Limited connectivity options by modern standards; primarily focused on audio playback.

ABS:

Anti-lock Braking System (ABS) was an optional feature for the 2010 FLHR Road King, significantly enhancing braking safety.

Dashboard:

Analog speedometer and tachometer, with a digital display for odometer, trip meter, gear indicator, and fuel level. Warning lights for various systems.

🔧 Maintenance

Initial Service:

Typically at 1,000 miles (1600 km) for break-in service (oil change, primary fluid check, inspection).

Routine Service:

Generally every 5,000 miles (8,000 km) or 6 months, whichever comes first, for oil changes, filter replacements, and inspections. Transmission and primary fluids typically every 10,000 miles (16,000 km).

Engine Oil:

Harley-Davidson SYN3 Full Synthetic or equivalent meeting specifications.

Primary Fluid:

Harley-Davidson Formula + Transmission and Primary Chaincase Lubricant or equivalent.

Brake Fluid:

DOT 4 (for models with ABS) or DOT 4 for non-ABS models, as specified in the manual.

Fork Oil:

Specific viscosity and type as per manual, typically around 15W or 20W depending on fork type and tuning.

Common Wear Items:

Clutch plates, brake pads, tires, and battery are common wear items. The fuel pump and electrical connections can also be points of inspection.

Typical Concerns 2010 Tc103:

While generally robust, early models of the Twin Cam 103 could sometimes exhibit oil leaks or lifter noise if not maintained meticulously. Exhaust system integrity and exhaust gasket sealing are also important.

📚 Vehicle History

Legacy:

Harley-Davidson, founded in 1903, has a long and storied history in motorcycle manufacturing, known for its V-twin engines and iconic cruiser designs.

Road King Lineage:

The Road King line, introduced in 1994, replaced the FXR-based touring models and quickly became a staple for its classic styling and touring capabilities, bridging the gap between traditional cruisers and full touring bikes.

Manufacturing Location:

Typically manufactured in York, Pennsylvania, USA, and Milwaukee, Wisconsin, USA.

🏆 Awards & Recognition

Market Reputation:

Consistently praised for its comfortable ride, powerful engine, and timeless styling, solidifying its position as a benchmark in the cruiser segment.

Owner Satisfaction:

Generally high owner satisfaction ratings, reflecting its blend of performance, comfort, and brand prestige.