The single cylinder engine had been a mainstay of the Harley-Davidson line since the early days of the company's founding in 1903, but it was not until 1909 that the V-twin design was added. It was Introduced in 1926, and it disappeared from the program in 1934 and was reintroduced in 1937 as Harley-Davidson V - Twin B. [1]
It was introduced in 1926 and modified and modernized to meet the needs of foreign markets where it was most popular. It was followed by the lightweight Model C Harley, followed by a variety of DKW-based designs. [2]
Harley-Davidson, Inc. is an American motorcycle manufacturer headquartered in Milwaukee, Wisconsin, United States. Founded in 1903, it is one of two major American motorcycle manufacturers to survive the Great Depression along with its historical rival, Indian Motorcycles. The company has survived numerous ownership arrangements, subsidiary arrangements, periods of poor economic health and product quality, and intense global competition to become one of the world's largest motorcycle manufacturers and an iconic brand widely known for its loyal following. There are owner clubs and events worldwide, as well as a company-sponsored, brand-focused museum.
Indian Motorcycle is an American brand of motorcycles owned and produced by American automotive manufacturer Polaris Inc.
A softail motorcycle intentionally looks like vintage motorcycles with a rigid hard-tail frame that has a triangle of steel tubes at the rear axle, like on a bicycle frame, but on a Softail these tubes are actually a triangular swingarm, with the shock absorber(s) hidden, as opposed to clearly visible regular twin shocks on both sides of the rear wheel on standard bikes. Since the introduction of the Harley-Davidson FXST Softail in 1983 as a registered trademark of the Motor Company, softail has become a genericized trademark for other models of cruiser motorcycles with rear suspensions hidden for retro style reasons. This was done even though the rear wheel was often hidden behind bags or exhaust pipes.
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 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.
The Harley-Davidson Twin Cam are motorcycle engines made by Harley-Davidson from 1998 to 2017. Although these engines differed significantly from the Evolution engine, which in turn was derived from the series of single camshaft, overhead valve motors that were first released in 1936, they share a number of characteristics with nearly all previous Harley-Davidson engines. Both engines have two cylinders in a V-twin configuration at 45°, are air-cooled, and activate valves with push-rods. The crankshafts have a single pin with a knife and fork arrangement for the connecting rods. These are sandwiched between a pair of flywheels.
Harley-Davidson FL is a model designation used for Harley-Davidson motorcycles since 1941, when F referred to the new large capacity 74 cui (1200cc) variant of the V-2 Overhead valve engine (″Knucklehead″) that was introduced in 1936 as Model E with 61 cui (1000cc). The presence of an additional letter L indicated higher compression, offering more power but requiring higher octane gasoline. In 1950s, the low compression version was discontinued, and in 1952 also the low capacity EL, making FL the standard engine and model designation for decades to come.
The Harley-Davidson Super Glide was a motorcycle made by the Harley-Davidson. Reputed to be the first factory custom motorcycle, it originated Harley-Davidson's FX series of motorcycles by mating Sportster components, most notably the front end, with the chassis of their larger big twin motorcycles. Super Glide models from 1991 to 2018 were based on the Dyna Glide chassis which has a wider variety of front ends and trim levels, and for a time filled the intermediate niche between the smallest and largest Harley-Davidson models; the Dyna platform has since been discontinued for the 2018 model year in favor of the new Softail frame, with some models from the Dyna nameplate being carried over to the Softail line.
The Excelsior Super X was a motorcycle manufactured by the Excelsior Motor Manufacturing & Supply Company from 1925 to 1931. It was the most famous Excelsior motorcycle manufactured by that company and was the first American forty-five cubic inch motorcycle.
The Harley-Davidson Servi-Car is a three-wheeled utility motorcycle that was manufactured by Harley-Davidson from 1932 to 1973.
The Harley-Davidson Model 7D of 1911 was the first successful v-twin from Harley-Davidson, inaugurating a motorcycle engine configuration that has continued unbroken from the Milwaukee motor company ever since.
The Harley-Davidson Tri Glide Ultra Classic is a three-wheeled motorcycle manufactured by Harley-Davidson and introduced in the 2009 model year. Its model designation is FLHTCUTG.
The Harley-Davidson Model W, also known as the Sport Twin, is a motorcycle made by Harley-Davidson from 1919 to 1923. Unusually for a Harley-Davidson motorcycle, the Model W had a flat-twin engine and a trailing link fork. The Model W set speed records on runs from New York City to Chicago and from the Canada–United States border to the Mexico–United States border. Slow home market sales led to the end of production after four years.
The Harley-Davidson Freewheeler is a motorized tricycle introduced by Harley-Davidson in August, 2014 for the 2015 model year. It is designated the FLRT.
The Harley-Davidson KR or KR750 was a 45.125 cu in (739.47 cc) displacement V-twin engine racing motorcycle made by Harley-Davidson from 1953 through 1969 for flat track racing. It was also used in road racing in the KRTT faired version. When the KR was first introduced, it dominated motorcycle racing in the United States. In 1970 it was replaced by the long-lived and US race-winning Harley-Davidson XR-750.
The Harley-Davidson Fat Boy, is a V-twin softail cruiser motorcycle with solid-cast disc wheels. Designed by Willie G. Davidson and Louie Netz, Harley-Davidson built a prototype Fat Boy in Milwaukee for the Daytona Bike Week rally at Daytona Beach in 1988 and 1989. Fat Boys produced from 1990-2017 are coded FLSTF, and FLFB from 2018.
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