Positioning:
The Harley-Davidson Dyna Street Bob FXDB is positioned as a minimalist, customizable cruiser with a classic bobber aesthetic, appealing to riders seeking a raw, authentic riding experience.
Competitors:
Competes with other American V-twin cruisers from brands like Indian Motorcycle, as well as some Japanese cruiser offerings that emphasize style and customization potential.
Styling:
Stripped-down look with a chopped rear fender, solo seat, mini-ape handlebars, and a blacked-out theme.
Engine Emphasis:
Focus on the iconic Harley-Davidson V-twin engine experience, with emphasis on torque and sound.
Customization Platform:
Designed as a strong platform for personalization and modification.
Engine Service:
Full engine disassembly, inspection, repair, and reassembly procedures for all components including top end, bottom end, fuel system, and ignition.
Transmission Service:
Detailed procedures for the 6-speed Cruise Drive transmission, including clutch, primary drive, internal gear inspection, and lubrication.
Electrical System:
Comprehensive electrical diagrams, troubleshooting guides, and repair procedures for lighting, ignition, charging system, starter, battery, and control modules.
Brake System:
Service and repair for front and rear braking systems, including hydraulic components, calipers, rotors, and fluid bleeding procedures.
Suspension And Steering:
Maintenance and repair of front forks (including Twin Cam 49mm telescopic forks), rear shock absorbers, and steering head bearings.
Fuel And Exhaust Systems:
Information on fuel injection systems (Electronic Sequential Port Fuel Injection - ESPFI), fuel tanks, fuel pumps, and exhaust systems.
Chassis And Frame:
Frame inspection, alignment, and repair procedures, as well as bodywork and cosmetic component removal/installation.
Wheels And Tires:
Wheel bearing maintenance, tire pressure recommendations, and tire replacement procedures.
Routine Maintenance:
Oil changes, filter replacements, chain adjustment, brake pad inspection, spark plug replacement, and general lubrication.
Troubleshooting Guides:
Diagnostic procedures for common issues, including starting problems, electrical faults, and performance irregularities.
Major Repairs:
Step-by-step instructions for complex repairs, including engine rebuilding, transmission overhaul, and suspension component replacement.
Component Disassembly Reassembly:
Detailed instructions for taking apart and putting back together all major motorcycle components.
Wiring Diagrams:
Comprehensive and color-coded wiring schematics for accurate electrical system diagnosis and repair.
Depth:
Comprehensive, covering everything from basic maintenance to full engine and transmission overhauls and advanced electrical diagnostics.
Engine Type:
Air-cooled, Twin Cam 103™ V-twin
Displacement:
1690 cc (103 cubic inches)
Bore X Stroke:
3.875 in. x 4.375 in. (98.4 mm x 111.3 mm)
Valve Train:
Pushrod-actuated, overhead valves with hydraulic lifters, 2 valves per cylinder
Torque Peak:
Approximately 98-100 ft-lbs @ 3,000 RPM (varies slightly by year and specific configuration)
Horsepower Peak:
Estimated 70-75 HP (not officially published by Harley-Davidson for this model year range)
Fuel Delivery:
Electronic Sequential Port Fuel Injection (ESPFI)
Fuel Type:
Premium unleaded gasoline, minimum 91 octane
Oil Type:
Harley-Davidson Syn3 (synthetic) or equivalent V-twin motorcycle specific oil.
Oil Capacity:
Approximately 4 quarts (3.8 liters) with filter change.
Type:
6-speed Cruise Drive
Clutch Type:
Cable-actuated, 10-plate wet clutch
Gear Ratios:
1st: 9.312, 2nd: 6.650, 3rd: 4.943, 4th: 3.895, 5th: 3.307, 6th: 2.790 (subject to minor variations)
Primary Drive:
3-inch (76 mm) belt drive
Final Drive:
Belt drive, 51/24 ratio (2.125:1)
Transmission Fluid Type:
Harley-Davidson Formula+ or equivalent heavy-duty primary lubricant.
Transmission Fluid Capacity:
Approximately 2.8 quarts (2.6 liters)
Crash Test Ratings:
N/A (Motorcycle safety ratings differ from automotive; focus is on design and component reliability as detailed in manual).
Braking System:
Dual-action, front and rear disc brakes. Optional ABS available on select models/years, check VIN for specific features.
Lighting:
Halogen headlight, LED taillight/brake light, amber incandescent turn signals.
Frame Construction:
Steel, welded backbone and downtube frame.
Tire Design:
Tubeless, bias-ply construction for stability.
Audio System:
Typically base model without factory radio. Aftermarket integration is common. Manual may cover basic wiring for accessories.
ABS:
Anti-lock Braking System (ABS) was an optional feature on many models in this range. Manual covers ABS system diagnostics and repair if equipped.
Diagnostic Port:
Varies by year, but typically includes a diagnostic connector for advanced fault code reading and system analysis. Manual details access and usage.
Ignition Type:
Electronic ignition with knock sensor.
Initial Service:
Typically at 1,000 miles (1,600 km) for first service (oil change, filter, inspection).
Subsequent Oil Changes:
Every 5,000 miles (8,000 km) or annually, whichever comes first.
Primary Chain Tensioner Inspection:
Inspect at 2,500 miles (4,000 km) and every 5,000 miles (8,000 km) thereafter.
Spark Plug Replacement:
Recommended every 10,000 miles (16,000 km) or as needed.
Brake Fluid Flush:
Recommended every 2 years or as specified in manual.
Engine Oil Grade:
Harley-Davidson 20W-50 (Syn3 or conventional V-twin specific)
Primary Chain Case Lubricant:
Harley-Davidson Formula+ or equivalent heavy-duty primary lubricant
Transmission Oil Grade:
Harley-Davidson Formula+ or equivalent heavy-duty primary lubricant (shared with primary)
Brake Fluid Type:
DOT 4 recommended for ABS models, DOT 5.1 for non-ABS models (always verify with specific year manual).
Primary Chain Tensioner:
Early models (pre-2010) had a hydraulic tensioner that could wear out; later models featured a more robust shoe-type tensioner which can still wear and require replacement over time. Manual details inspection and replacement.
Cam Chain Tensioners:
Twin Cam engines (especially earlier ones) were known to have issues with cam chain tensioners wearing prematurely, leading to noise and potential damage. Manual provides diagnostic and replacement procedures.
Regulator Rectifier:
Some Harley-Davidson models of this era experienced early failure of the regulator rectifier. Manual covers testing and replacement.
Legacy:
Harley-Davidson boasts over a century of motorcycle manufacturing, renowned for its V-twin engines and iconic American cruiser styling.
Dyna Lineage:
The Dyna platform, introduced in 1991, served as a bridge between the traditional Big Twin and the lighter Sportster, characterized by its rubber-mounted engine for vibration isolation and a blend of classic and modern styling.
Street Bob Introduction:
The Street Bob was introduced to offer a more minimalist and customizable take on the Dyna platform, focusing on essential elements and a rebellious aesthetic.
Manufacturing Location:
United States (primarily Milwaukee, Wisconsin, and York, Pennsylvania plants).
Platform Discontinuation:
The Dyna platform was discontinued after the 2017 model year, with its legacy carried forward into the Softail line.
