Category:
        
        
            Cruiser Motorcycle
        
     
    
        
            Target Audience:
        
        
            Harley-Davidson Softail owners, independent repair shops, motorcycle technicians
        
     
    
    
        
            Segment:
        
        
            Mid-size Cruiser
        
     
    
        
            Key Competitors:
        
        
            Indian Chief, Victory Boardwalk, Honda Shadow, Kawasaki Vulcan
        
     
    
    
        
            Motorcycle Platform:
        
        
            Softail platform, known for its hidden rear shock absorbers for a hardtail appearance.
        
     
    
        
            Model Emphasis:
        
        
            Softail Standard, emphasizing classic styling and essential cruising performance.
        
     
 
    
    
    
        
            Powertrain:
        
        
            Engine (Twin Cam 103), Transmission, Clutch, Final Drive
        
     
    
        
            Chassis:
        
        
            Frame, Suspension (Front/Rear), Wheels, Tires, Brakes (Front/Rear), Steering
        
     
    
        
            Electrical:
        
        
            Ignition System, Charging System, Starting System, Lighting, Instrumentation, ECM, Sensors, Wiring Diagrams
        
     
    
        
            Fuel System:
        
        
            Fuel Injection (EFI), Fuel Tank, Fuel Pump, Fuel Lines
        
     
    
        
            Exhaust System:
        
        
            Exhaust Pipes, Mufflers, Catalytic Converter (if equipped)
        
     
    
        
            Bodywork:
        
        
            Fenders, Tank, Seat, Handlebars, Controls, Body Panels
        
     
    
    
        
            Maintenance:
        
        
            Scheduled Maintenance, Oil Changes, Filter Replacements, Spark Plug Service, Belt Adjustments
        
     
    
        
            Troubleshooting:
        
        
            Diagnostic Flowcharts, Symptom-Based Troubleshooting, Code Reading
        
     
    
        
            Repair:
        
        
            Engine Overhaul, Transmission Rebuild, Brake System Repair, Electrical Component Replacement, Suspension Service
        
     
    
        
            Diagnostics:
        
        
            ECM Diagnostics, Sensor Testing, Actuator Testing, ABS Diagnostics (if equipped)
        
     
    
    
        
            Depth:
        
        
            Comprehensive (from basic fluid checks to complete engine and transmission rebuilds)
        
     
 
    
    
    
        
            Engine Type:
        
        
            Air-cooled, Twin Cam 103B V-Twin
        
     
    
        
            Displacement:
        
        
            1690 cc (103 cubic inches)
        
     
    
        
            Bore X Stroke:
        
        
            3.875 in x 4.38 in (98.4 mm x 111.3 mm)
        
     
    
    
        
            Valve Train:
        
        
            Pushrod-actuated, overhead valves with hydraulic, self-adjusting lifters; two valves per cylinder
        
     
    
        
            Timing:
        
        
            Timing gear drive
        
     
    
    
        
            Horsepower:
        
        
            Approx. 78 HP @ 5010 RPM (Figures vary slightly based on specific tuning and emissions regulations)
        
     
    
        
            Torque:
        
        
            Approx. 97 ft-lbs @ 3500 RPM (Figures vary slightly based on specific tuning and emissions regulations)
        
     
    
    
        
            Injection Type:
        
        
            Electronic Sequential Port Fuel Injection (ESPFI)
        
     
    
        
            Fuel Type:
        
        
            Premium Unleaded Gasoline (91 octane or higher recommended)
        
     
    
    
        
            Oil Capacity:
        
        
            3.5 US qt (3.3 L)
        
     
    
        
            Oil Filter Part Number:
        
        
            63796-77B (or equivalent)
        
     
    
    
        
            Cooling Method:
        
        
            Air-cooled
        
     
 
    
    
    
        
            Type:
        
        
            6-speed Cruise Drive
        
     
    
        
            Gear Ratios:
        
        
            1st: 9.31, 2nd: 6.45, 3rd: 4.79, 4th: 3.89, 5th: 3.30, 6th: 2.79
        
     
    
        
            Clutch Type:
        
        
            Hydraulic, Assist-Type, Wet Multi-Plate
        
     
    
        
            Primary Drive:
        
        
            Chain, 34/46 ratio
        
     
    
        
            Final Drive:
        
        
            Belt, 32/66 ratio
        
     
    
    
        
            Transmission Fluid Type:
        
        
            Harley-Davidson Formula+ (or equivalent GL-4, SAE 80W-90)
        
     
    
        
            Transmission Fluid Capacity:
        
        
            2.7 US qt (2.55 L)
        
     
 
    
    
    
        
            Crash Test Ratings:
        
        
            Not Applicable (Motorcycle)
        
     
    
    
        
            Braking System:
        
        
            Hydraulic disc brakes, front and rear
        
     
    
        
            ABS:
        
        
            Optional (Anti-lock Braking System)
        
     
    
    
        
            Lighting:
        
        
            Halogen headlamp, LED tail lamp and brake lamp
        
     
    
        
            Indicators:
        
        
            Front and rear turn signals
        
     
 
    
    
    
        
            Display:
        
        
            Analog speedometer with integrated LCD display for odometer, trip meter, clock, and gear indicator.
        
     
    
        
            Audio System:
        
        
            Not standard on the Softail Standard model; typically an accessory option.
        
     
    
    
        
            ABS:
        
        
            Available as an option.
        
     
    
        
            Cruise Control:
        
        
            Not standard on the Softail Standard model; typically an accessory option.
        
     
    
    
        
            Bluetooth:
        
        
            Not standard; available via accessory communication modules.
        
     
 
    
    
    
        
            First Service:
        
        
            1,000 miles (1,600 km) or 6 months
        
     
    
        
            Subsequent Service:
        
        
            Every 5,000 miles (8,000 km) or 12 months thereafter
        
     
    
        
            Engine Oil Change Interval:
        
        
            Every 5,000 miles (8,000 km) or 12 months
        
     
    
        
            Transmission Fluid Change Interval:
        
        
            Every 10,000 miles (16,000 km) or 24 months
        
     
    
        
            Primary Chain Case Fluid Change Interval:
        
        
            Every 10,000 miles (16,000 km) or 24 months
        
     
    
    
        
            Engine Oil Specification:
        
        
            Harley-Davidson 20W-50 Syn3 Full Synthetic (or equivalent API CG-4 rated synthetic oil)
        
     
    
        
            Transmission Fluid Specification:
        
        
            Harley-Davidson Formula+ (or equivalent GL-4, SAE 80W-90)
        
     
    
        
            Primary Chain Case Fluid Specification:
        
        
            Harley-Davidson Formula+ (or equivalent SAE 80W-90 GL-4)
        
     
    
        
            Brake Fluid Specification:
        
        
            DOT 4
        
     
    
    
        
            Engine Mounts:
        
        
            Potential for vibration at idle; check rubber mounts for wear.
        
     
    
        
            Cam Chain Tensioner:
        
        
            Early Twin Cam models had plastic cam chain tensioners that could wear; later models (including this era) use improved hydraulic tensioners, but inspection is still recommended as part of a comprehensive service.
        
     
    
        
            Primary Clutch Adjustment:
        
        
            Clutch adjustment can be critical for smooth engagement; refer to manual for correct procedure.
        
     
    
        
            Rear Shock Preload:
        
        
            Adjustable rear shocks require periodic checking and adjustment based on load.
        
     
 
    
    
    
        
            Brand:
        
        
            Harley-Davidson, established 1903, iconic American motorcycle manufacturer.
        
     
    
    
        
            Softail Lineage:
        
        
            The Softail platform was introduced in 1984, designed to mimic the look of a hardtail frame while incorporating rear suspension.
        
     
    
        
            Softail Standard Role:
        
        
            The 'Standard' designation often signifies a more basic, stripped-down version of the model, focusing on core styling and performance.
        
     
    
        
            Twin Cam Era:
        
        
            The 2015 model falls within the Twin Cam engine era, which powered Harley-Davidson motorcycles from 1999 to 2017.
        
     
    
    
        
            Assembly Location:
        
        
            York, Pennsylvania, USA and Kansas City, Missouri, USA (typical for Harley-Davidson motorcycles of this era).
        
     
 
    
    
    
        
            Model Specific Awards:
        
        
            Specific awards for the 2015 Softail Standard are not widely publicized; however, the Softail platform is consistently recognized for its blend of classic styling and comfortable cruising.
        
     
    
    
        
            Motorcycle Reviews:
        
        
            Generally praised for its accessible performance, comfortable riding position, and iconic Harley-Davidson styling.
        
     
    
    
        
            Emissions Compliance:
        
        
            Meets US EPA and California ARB emissions regulations for its model year.