![]() ![]() ![]() Models since 1991 have five speeds 1990 and earlier models had four speeds. Sportster engines retained the K/KH design crankcase design, in which the transmission is contained in the same casting as the engine, and driven by the engine with a triple-row #35 chain primary drive and a multi-plate cable-operated clutch. The company used similar cam followers for decades, with minor changes, from 1929 to the 1980s.Ī typical 5-gear, foot-shift transmission on an HD Sportster The cam followers used in Sportster engines, K models, big twin side-valve models, and the side-valve W model series, were a slightly shorter version of the followers used in the larger motors, but featured the same 0.731-inch (18.6 mm) diameter body and 0.855-inch (21.7 mm) diameter roller follower used since 1929. 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. The original Sportster engine was the Ironhead engine, which was replaced with the Evolution engine in 1986. 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. Harley-Davidson 45° V-twin, Sportster Evolution engine It was the first motorcycle under the Sportster nameplate to receive a new engine since 1986, and the first Sportster to have an engine not derived from the Model K. An all-new model, called the Sportster S and equipped with the Revolution Max engine, was introduced in 2021. The original Sportster line was discontinued in Europe in 2020 because the engine failed to meet the stricter Euro 5 emissions standards. The first Sportster in 1957 had many of the same details of the KH including the frame, fenders, large gas tank and front suspension. 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. In 1952, the predecessors to the Sportster, the Model K Sport and Sport Solo motorcycles, were introduced. Sportster models are designated in Harley-Davidson's product code by beginning with "XL". What do you think about the 1969 Harley Davidson XLH Sportster? Leave your thoughts in the comment box below.The Harley-Davidson Sportster is a line of motorcycles produced continuously since 1957 by Harley-Davidson. It is truly an attractive motorcycle that has grown in value as every year passes by. Motorcycle enthusiasts cherish this and value the bike for its beauty and speed. In the end, the 1969 Harley Davidson XLH Sportster was the last of its kind. Of course, the danger element to these bikes was part of their intrigue.Īs such, the Sportster had to adapt, first under its new owners, and then later to compete with the Japanese motorcycle models. Their motorcycles were lighter and faster, which made them both intriguing and dangerous for street racing. The Japanese motorcycle manufacturers had designed their products with better, more advanced technology. Americans may not have wanted to purchase a foreign manufacturer's product, but there was little disagreement as to which had better specs. Starting in the 1970s, Japanese motorcycle manufacturers started gaining power in the American motorcycle market. ![]()
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