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. Harley-Davidson 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. Harley-Davidson V-Rod is visually distinct from other Harley-Davidson motorcycles.