THIS 2003 HARLEY IS A SPECIAL 100th ANNIVERSARY EDITION ANS CARRYS SPECIAL BADGING AND EQUIPMENT. SEE THIS SPECIAL HARLEY AND OUR OTHER EXOTIC VEHICLES AT THE NEW LEGACY MOTOR CARS. WE ALSO CARRY A WIDE RANGE OF AFFORDABLE PRE OWNED CARS. The Harley-Davidson Sportster is a line of motorcycles produced continuously since 1957 by Harley-Davidson. Sportster models are designated in Harley-Davidson's product code by beginning with "XL". In 1952, the predecessors to the Sportster, the Model K Sport and Sport Solo motorcycles, were introduced. These models K, KK, KH, and KHK of 1952 to 1956 had a sidevalve ('flat head') engine, whereas the later XL Sportster models use an overhead valve engine. The first Sportster in 1957 had many of the same details of the KH including the frame, fenders, large gas tank and front suspension.[Sportster motorcycles are powered by a four-stroke, 45° V-twin engine in which both connecting rods, of the "fork and blade" or "knife & fork" design, share a common crank pin. The original Sportster engine was the Ironhead engine, which was replaced with the Evolution engine in 1986. Sportster engines, the 45 cubic inch R, D, G & W Models 1929 side-valve motors, and the 'Big Twin' side-valve motors, which were: the flathead 74.0 cu in (1,213 cc) Models V, VL etc. (19301936), Models U and UL (19371948), and the 80.0 cu in (1,311 cc) models VH and VLH (19351936), models UH and ULH (19371941) have four separate cams, sporting one lobe per cam.Sportster motorcycles are powered by a four-stroke, 45° V-twin engine in which both connecting rods, of the "fork and blade" or "knife & fork" design, share a common crank pin. The original Sportster engine was the Ironhead engine, which was replaced with the Evolution engine in 1986. Sportster engines, the 45 cubic inch R, D, G & W Models 1929 side-valve motors, and the 'Big Twin' side-valve motors, which were: the flathead 74.0 cu in (1,213 cc) Models V, VL etc. (19301936), Models U and UL (19371948), and the 80.0 cu in (1,311 cc) models VH and VLH (19351936), models UH and ULH (19371941) have four separate cams, sporting one lobe per cam.