| Feature | Specification |
|---|---|
| Production Years | 2006-2007 |
| Engine Type | Liquid-cooled, 60-degree V-Twin (Revolution) |
| Oil Capacity | 4.3 L (SAE 20W-50) |
| Front Tire | 120/70 ZR 19 |
| Rear Tire | 180/55 ZR 18 |
| Front Pressure | 2.5 bar (36 psi) |
| Rear Pressure | 2.8 bar (40 psi) |
| Battery | YTX20L-BS |
| Spark Plug | 10R12X |
Engineering Highlight: The 40-Degree Lean Angle
The Harley-Davidson VRSCR Street Rod holds a unique place in Milwaukee history as the most aggressive iteration of the V-Rod platform. While its siblings were designed for the drag strip or cruising, the Street Rod was engineered with a specific European sensibility. It was the first Harley-Davidson to feature a 40-degree lean angle, achieved through a taller seat height and mid-mounted controls, fundamentally shifting the center of gravity to compete directly with high-performance naked bikes of the era.
Technical Analysis: The Revolution Engine
At the heart of the VRSCR is the 1130cc Revolution engine. Developed in collaboration with Porsche, this liquid-cooled, DOHC, 4-valve-per-cylinder V-twin represents a departure from traditional air-cooled H-D architecture. The VRSCR variant specifically utilized high-flow heads and revised cam timing to deliver approximately 120 horsepower, making it one of the most potent engines in the H-D lineup during its production run.
Maintenance Guide
Lubrication System
The VRSCR requires 4.3 liters of SAE 20W-50 oil. Given the high-revving nature of the Revolution engine compared to traditional Big Twins, using a high-shear synthetic oil is recommended to maintain viscosity under thermal stress. The oil filter should be replaced at every 5,000-mile interval.
Chassis and Tires
The Street Rod utilizes a unique wheel combination: a 19-inch front and an 18-inch rear. For optimal handling and safety, maintain tire pressures at 2.5 bar (36 psi) for the front and 2.8 bar (40 psi) for the rear. The inverted 43mm Showa forks require periodic inspection for seal integrity, as the aggressive geometry places significant load on the front end during hard braking.
Electrical and Ignition
Reliable starting is provided by the YTX20L-BS battery. For ignition, the 10R12X spark plugs should be gapped correctly and inspected for carbon fouling, particularly if the bike is used primarily for short urban commutes where the engine may not reach full operating temperature.
MotoSpecsLab Verdict
The VRSCR Street Rod is a “rider’s Harley.” It demands more from the pilot but offers rewards in cornering stability and engine response that few other models in the H-D catalog can match. Proper maintenance of the cooling system and high-quality fluids are essential to preserving the Porsche-engineered longevity of this modern classic.