| Component | Specification |
|---|---|
| Engine | 110 cui (1803cc) Screamin’ Eagle Twin Cam |
| Oil Type | SAE 20W50 SYN3 Full Synthetic (2.8 L) |
| Front Tire | 120/70 ZR 21 62W |
| Rear Tire | 170/60 R 17 78H |
| Tire Pressure (F/R) | 36 psi / 40 psi (2.48 / 2.76 bar) |
| Battery | 65989-97C |
| Spark Plug | 6R12 |
Historical Context: The 2007 FXDSE marked a pivotal moment for Harley-Davidson’s Custom Vehicle Operations (CVO) as it was the first Dyna model to be equipped with the massive 110 cubic-inch Screamin’ Eagle Twin Cam engine. This move effectively transformed the nimble Dyna chassis into a high-torque powerhouse, bridging the gap between raw street performance and custom-shop aesthetics.
Engineering & Performance
The heart of the FXDSE/2 is the air-cooled Twin Cam 110™ engine, featuring a Granite-powder-coated finish and chrome covers. Unlike standard Dynas of the era, the CVO variant utilized a high-flow Heavy Breather intake and specialized EFI tuning to manage the increased displacement. The FXDSE2 (2008 model) continued this legacy with improved ‘Mirror Chrome’ forged aluminum wheels and unique paint schemes that highlighted its premium status.
Maintenance Guidelines
Maintaining the 110 cui engine requires strict adherence to fluid specifications due to the higher heat generated by the larger displacement. We recommend SAE 20W50 SYN3 Full Synthetic oil to ensure thermal stability. The system requires 2.8 liters for a standard change with filter.
Ignition and Electrical
The FXDSE utilizes 6R12 Spark Plugs. Given the high-compression nature of the Screamin’ Eagle heads, it is vital to check gap tolerances every 5,000 miles to prevent misfires. The electrical system is anchored by the 65989-97C battery, which provides the high cold-cranking amps (CCA) necessary to turn over the large V-Twin.
Chassis and Handling
The FXDSE features an aggressive stance with a 21-inch front wheel and a 17-inch rear. Handling is significantly influenced by tire pressure; for optimal contact patch and stability, maintain 36 psi in the front and 40 psi in the rear. The inverted front forks, a hallmark of this model, require periodic inspection for seal integrity, as they are tuned specifically for the CVO’s increased weight and torque output.
MotoSpecsLab Verdict
The FXDSE/2 remains one of the most sought-after Dynas for collectors and performance enthusiasts alike. Its combination of the rubber-mounted 110 engine and the lightweight Dyna frame offers a visceral riding experience that modern Softail-based CVOs struggle to replicate. Proper maintenance of the cooling and lubrication systems is the key to longevity for this high-performance machine.