| Specification | Technical Data |
|---|---|
| Model Years | 2016-2017 |
| Engine | Screamin’ Eagle 110ci (1801cc) Air-cooled V-Twin |
| Oil Capacity | 2.8 L (Harley-Davidson Genuine 20W50) |
| Front Tire | 100/90B19 57H (30 psi) |
| Rear Tire | 160/70B17 73V (40 psi) |
| Battery | 65989-97E |
| Spark Plug | 6R12 (Gap: 0.97–1.09 mm) |
The Harley-Davidson FXDLS Dyna Low Rider S holds a unique place in motorcycling history as the ultimate factory performance Dyna. It was the first and only non-CVO Dyna to be equipped from the factory with the Screamin’ Eagle 110 cubic inch (1,801cc) V-Twin engine, making it the most powerful iteration of the chassis before the platform was discontinued in favor of the Softail line in 2018.
Engineering Overview
At MotoSpecsLab, we categorize the FXDLS as a ‘Performance Cruiser’ benchmark. Beyond the massive displacement, the engineering highlight is the electronic throttle control and the heavy-duty suspension. Unlike standard Dynas, the ‘S’ model features premium cartridge forks and emulsion rear shocks, specifically tuned to handle the 115 lb-ft of torque generated by the 110ci power plant. The braking system was similarly upgraded with dual front rotors and standard ABS, providing the necessary stopping power for its high-output profile.
Maintenance Guide & Essentials
Maintaining the FXDLS requires precision, particularly regarding the high-compression Screamin’ Eagle engine. Using the correct lubricants and maintaining electrical health is paramount for longevity.
Lubrication System
The FXDLS demands 2.8 liters of high-quality oil. While H-D 360 Mineral is acceptable, MotoSpecsLab recommends SYN3 Synthetic 20W50 for better thermal stability, given the heat generated by the 110ci air-cooled engine.
Tires and Traction
Maintaining correct tire pressure is critical for the Dyna’s handling characteristics. The front 19-inch wheel should be kept at 30 psi (2.07 bar), while the rear 17-inch wheel requires 40 psi (2.76 bar). Given the torque output, rear tire wear should be inspected every 2,500 miles.
Electrical & Ignition
The ignition system utilizes 6R12 spark plugs. It is vital to ensure the gap is set precisely between 0.97 and 1.09 mm to prevent misfires under load. For the electrical system, the 65989-97E battery provides the high cold-cranking amps (CCA) necessary to turn over the large-displacement V-twin.
Technical FAQ
What is the recommended spark plug gap?
The gap for the 6R12 plugs should be between 0.97 and 1.09 mm.
Can I use non-synthetic oil?
Yes, H-D 360 Mineral oil is approved, but synthetic SYN3 is preferred for the high-performance Screamin’ Eagle engine components.
What is the primary difference between the FXDL and the FXDLS?
The FXDLS (S model) features the larger 110ci engine, upgraded suspension, dual front brakes, and electronic cruise control as standard, whereas the standard FXDL utilized the 103ci engine.