| Specification | Value |
|---|---|
| Production Years | 2020 – 2024 |
| Engine Oil | SAE 20W50 (4.7 L) |
| Spark Plugs | H-D 6R10 |
| Front Tire | 130/60B19 61H |
| Rear Tire | 180/55B18 80H |
| Battery Code | 66010-97D |
Engineering Highlight: The FLTRK is defined by its frame-mounted ‘Sharknose’ fairing. Unlike the fork-mounted Batwing fairings found on the Ultra Limited, the Road Glide’s fairing remains stationary during steering maneuvers. This engineering choice significantly reduces wind-induced handlebar oscillation and provides superior stability in crosswinds, making it the preferred chassis for long-distance high-speed touring.
Technical Review: The Milwaukee-Eight 114 Platform
The Road Glide Limited (FLTRK) serves as the pinnacle of Harley-Davidson’s Grand American Touring line. Powered by the Twin-Cooled™ Milwaukee-Eight 114 engine, it utilizes a combination of air-cooling and precision liquid-cooling to manage cylinder head temperatures, ensuring consistent performance under heavy loads. The 2020–2024 iterations benefit from the Reflex™ Defensive Rider Systems (RDRS), integrating cornering-enhanced electronic linked braking and traction control.
Maintenance Essentials
Lubrication System
For the 114ci powertrain, MotoSpecsLab recommends high-viscosity SAE 20W50 synthetic oil. The dry sump system requires 4.7 Liters for a complete filter and oil change. Ensure the engine is at operating temperature before checking levels to avoid overfilling.
Chassis and Contact Patch
Maintaining the massive 19-inch front and 18-inch rear wheel setup is critical for the FLTRK’s 900lb+ curb weight. Tire pressures must be strictly adhered to: 36 psi (Front) and 42 psi (Rear). Under-inflation leads to rapid cupping on the heavy front end and sluggish turn-in response.
Electrical & Ignition
The FLTRK utilizes the high-output 66010-97D battery to support the Boom!™ Box GTS infotainment system and heated grips. For ignition, the H-D 6R10 plugs should be gapped to 0.031-0.035 inches to ensure reliable combustion in the high-compression Milwaukee-Eight cylinders.
Pro-Tip for Owners
The FLTRK features a hand-adjustable rear emulsion suspension. When transitioning from solo riding to two-up touring with a full Tour-Pak, always refer to the preload adjustment knob behind the left saddlebag to maintain the correct geometry and prevent bottoming out.