| Specification | Value |
|---|---|
| Model | Dyna Low Rider (FXDL/14) |
| Year | 2014 |
| Engine Oil | SAE 20W50 (2.8 L) |
| Front Tire | 100/90B19 57H |
| Rear Tire | 160/70B17 73V |
| Tire Pressure | F: 2.1 bar (30 psi) / R: 2.5 bar (36 psi) |
| Battery | 65989-97E |
| Spark Plug | Harley-Davidson 6R12 |
Engineering Highlight: The 2014 re-introduction of the Low Rider (FXDL) marked a significant milestone in Harley-Davidson’s “Project Rushmore” era ergonomics. It debuted the ‘Perfect Fit’ system, featuring a unique adjustable handlebar riser with 2.4 inches of movement and a removable seat bolster, allowing the motorcycle to accommodate a wider range of rider heights than any previous Dyna chassis.
Technical Review
The FXDL/14 is powered by the venerable Twin Cam 103™ V-Twin engine, delivering 99 ft-lb of peak torque at 3500 RPM. From an engineering standpoint, the 2014 model refined the Dyna’s handling characteristics by utilizing a 49mm fork and twin coil-over shocks, providing a more planted feel during high-speed cornering compared to its predecessors. The dual-disc front braking system is a critical performance upgrade, offering the modularity and stopping power required for a machine with a wet weight of approximately 302 kg.
Maintenance Guide
Lubrication System
For optimal thermal stability in the air-cooled Twin Cam 103, MotoSpecsLab recommends SAE 20W50 synthetic motorcycle oil. The total refill capacity is 2.8 Liters. Ensure the engine is at operating temperature before draining to facilitate the removal of suspended particulates.
Chassis and Tires
The 2014 Low Rider utilizes a specific staggered wheel setup. Maintaining correct tire pressure is vital for the longevity of the Michelin Scorcher tires usually fitted to this model. Maintain 2.1 bar (30 psi) in the front 100/90B19 tire and 2.5 bar (36 psi) in the rear 160/70B17 tire. Incorrect pressures on the Dyna frame can lead to the infamous ‘high-speed wobble’ due to the rubber-mounted engine alignment.
Electrical and Ignition
The electrical system relies on the 65989-97E battery. We recommend a smart-charger lead installation for any periods of inactivity exceeding 14 days. For ignition, the Harley-Davidson 6R12 spark plugs should be gapped to 0.038-0.043 inches to ensure complete combustion and prevent fouling in low-RPM cruising scenarios.
Frequently Asked Questions
Q: Can I use automotive 20W50 oil?
A: No. Motorcycle-specific oil contains additives for the wet clutch and high-shear environment of the integrated transmission that automotive oils lack.
Q: How often should I check the spark plugs?
A: We recommend inspection every 5,000 miles (8,000 km) and replacement every 30,000 miles, or sooner if performance degradation is noted.