| Component | Specification |
|---|---|
| Production Years | 2011-2013 |
| Engine Oil | H-D 360 20W50 (Mineral) / SYN3 20W50 (Synthetic) – 2.85 L |
| Tires (Front) | MH90-21 54H |
| Tires (Rear) | 150/80B16 71H |
| Tire Pressure | F: 30 psi | R: 36 psi (Solo) / 40 psi (Two-up) |
| Battery | 65989-97D |
| Spark Plug | Harley-Davidson 6R12 |
A unique engineering highlight of the Harley-Davidson Softail Blackline (FXS) is its ‘Split Drag’ handlebars. Unlike traditional cruiser setups, these bars bolt directly to the top triple tree, completely eliminating conventional risers. This design choice was pivotal in achieving the motorcycle’s signature low-profile, ‘slammed’ aesthetic while significantly reducing visual clutter in the cockpit.
Engineering Overview
The Blackline FXS represents a minimalist approach to the Softail platform. Built during the transition from the Twin Cam 96B to the 103B engine, it features rigid-mounted, counter-balanced powertrains that allow the engine to be bolted directly to the frame. This configuration provides the classic ‘hardtail’ look while maintaining modern ride quality through hidden horizontal rear shocks.
Maintenance Specifications & Fluids
For optimal longevity of the Twin Cam engine, MotoSpecsLab recommends adhering to a strict 5,000-mile (8,000 km) service interval. The 2.85-liter oil capacity requires high-viscosity 20W50 lubricant to handle the thermal loads of the air-cooled V-twin.
- Primary Chaincase: Requires approximately 0.95L of Formula+ Transmission and Primary Lubricant.
- Transmission: Requires approximately 0.95L of Formula+ or SYN3.
- Spark Plugs: The 6R12 plugs should be gapped to 0.038-0.043 inches (0.97-1.09 mm).
Chassis and Handling
The Blackline utilizes a narrow 21-inch front wheel paired with a 16-inch rear. This combination provides excellent straight-line stability but requires precise tire pressure management. Running the front tire below 30 psi can lead to ‘hunting’ on grooved pavement, while the rear must be increased to 40 psi when carrying a passenger to prevent sidewall overheating.
Expert Service Tips
- Battery Maintenance: The 65989-97D battery is a high-CCA unit. Due to the high compression of the Twin Cam engine, ensure terminals are torqued to 60-70 in-lbs to prevent starting issues.
- Drive Belt: Check tension every 5,000 miles. A loose belt on the Softail frame can cause premature wear on the rear sprocket (pulley).
- Fuel System: As an EFI-equipped model, ensure the fuel filter inside the tank is inspected if the bike hesitates under heavy acceleration.
Frequently Asked Questions
What is the oil capacity for the Softail Blackline?
The total oil capacity for a filter change is 2.85 Liters (approx. 3.0 US quarts).
Which spark plugs are best for the FXS?
The factory-recommended Harley-Davidson 6R12 plugs are engineered specifically for the heat range of the Twin Cam engine.
What is the correct tire pressure for two-up riding?
While the front remains at 30 psi, the rear tire must be inflated to 40 psi (2.76 bar) when carrying a passenger.