The Harley-Davidson VRSC (V-Twin Racing Street Custom) family of cruiser motorcycles was introduced in 2001 in a single model called the V-Rod. The V-Rod was developed by Harley-Davidson to compete against Japanese and American muscle bikes. The 'V-Rod' made use of the Revolution engine, developed jointly with Porsche that, for the first time in Harley history, incorporates fuel injection, overhead cams, and liquid cooling. The V-Rod is visually distinct from other Harley-Davidson motorcycles. It can be easily identified by the 60-degree V-twin engine, the radiator and the hydroformed frame members that support the round-topped air cleaner cover. A distinct difference between the V-Rod and all other Harley production motorcycles, is the location of the fuel tank. The fuel tank on the V-Rod is located underneath the seat, placing the driver on top of it, rather than the usual frontal placement, the 'tank' in this place is simple dressing, hiding the frame. Loosely based on the VR-1000 superbike, it continues to be a platform around which Harley-Davidson builds drag-racing competition machines. All VRSC models are produced at Harley-Davidson's Vehicle and Powertrain Operations facility in Blue Springs- Kansas City, Missouri.
VRSCDX Night Rod Special
Model years: 2007–Present. The VRSCDX is marketed as the factory made custom version of the standard Night Rod and is also part of Harley-Davidson's 'Dark Custom' series. In addition to a 240 mm wide rear tire, most of the chrome components of the VRSCD were replaced with black. The wheels were replaced by black slotted disk wheels, with dark orange pin striping. The Straight shot dual exhaust produced a claimed 120 hp (89 kW) at the crank. A 5 gallon tank was standard. The DX also features prominent racing stripes. In 2008 the VRSCDX Night Rod Special's Revolution was boosted from 1,130 cc (69 cu in) to 1,250 cc (76 cu in), producing claimed torque of 85 ft·lbf (115 N·m) @ 7,000 rpm, and peak power of 125 hp (93 kW) at the crank, a slipper-clutch was also added, as was an ABS option.