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Harley-Davidson, Inc., H-D, or Harley, is an American motorcycle manufacturer founded in 1903 in Milwaukee, Wisconsin. Along with Indian, it was one of two major American motorcycle manufacturers to survive the Great Depression. 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.
A V-twin engine, also called a V2 engine, is a two-cylinder piston engine where the cylinders share a common crankshaft and are arranged in a V configuration.
Indian Motorcycle is an American brand of motorcycles originally produced from 1901 to 1953 in Springfield, Massachusetts, United States. Hendee Manufacturing Company initially produced the motorcycles, but the name was changed to the Indian Motocycle Manufacturing Company in 1923.
A flat-twin engine is a two-cylinder internal combustion engine with the cylinders on opposite sides of the crankshaft. The most common type of flat-twin engine is the boxer-twin engine, where both cylinders move inwards and outwards at the same time.
A softail is a motorcycle with its rear suspension springs or shock absorbers located out of direct view, so as to look like a hard-tail motorcycle.
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.
Douglas was a British motorcycle manufacturer from 1907–1957 based in Kingswood, Bristol, owned by the Douglas family, and especially known for its horizontally opposed twin cylinder engined bikes and as manufacturers of speedway machines. The company also built a range of cars between 1913 and 1922.
Rex, Rex Motorcycles, Rex-Acme, was a car and motorcycle company which began in Birmingham, England in 1900. Rex soon merged with a Coventry maker of bicycles and cars named Allard and then later in 1922 the company merged with Coventry's 'Acme' motorcycle company forming 'Rex Acme'. The company existed until 1933, and, in its heyday, was considered one of the greatest names in the British motorcycle industry.
The history of the motorcycle begins in the second half of the 19th century. Motorcycles are descended from the "safety bicycle," a bicycle with front and rear wheels of the same size and a pedal crank mechanism to drive the rear wheel. Despite some early landmarks in its development, the motorcycle lacks a rigid pedigree that can be traced back to a single idea or machine. Instead, the idea seems to have occurred to numerous engineers and inventors around Europe at around the same time.
Humber Limited was a pioneering British motorcycle manufacturer. Humber produced the first practical motorcycle made in Britain by fitting one of their Humber bicycles with an E. J. Pennington two-horsepower motor in 1896.
The Advance Motor Manufacturing Company was a British motorcycle and engine manufacturer established in 1905. As well as supplying aircraft engines to the pioneering monoplane developers, Advance engines were also used by Captain Robert Scott to power Antarctic snow sleds. After the end of the Second World War the company was sold to Sheepbridge Engineering and became a motor supplies organisation.
Bradbury Motor Cycles was a British motorcycle manufacturer based in Oldham, England and established in 1902. Originally involved in the manufacture of machine tools, sewing machines and cycles, their first motorcycles were bicycles with clip-on Minerva engines. The Bradbury factory went on to develop and produce a range of single-cylinder motorcycle, V-twins and horizontally opposed twins. The 1912 Bradbury motorcycles were one of the earliest with variable gearing. Although the factory survived the First World War it closed in 1924.
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 Indian Model O was a lightweight motorcycle made by the Hendee Manufacturing Company from 1917 to 1919. Indian expected to sell the Model O to young or thrifty riders. The United States' entry into World War I caused Indian to shift manufacture to military motorcycles, and the low cost of the Ford Model T caused the market for lightweight motorcycles to collapse.
The Flying Merkel was a motorcycle of the American company Merkel in Milwaukee, which relocated later to Middletown, Ohio. The motorcycle was produced from 1911 to 1915.
Thor was an American manufacturer of motorcycles and motorcycle parts especially engines, founded in 1901 in Aurora, Illinois. From 1901 to about 1907 it made engines under license for Indian motorcycles of Connecticut, which Thor was also allowed to sell on the open market. Thor also sold a large variety of parts especially cylinder heads. and when the agreement finally ended, entered the motorcycle market on its own selling complete bikes until about 1920. Some of its success were supplying engines to many motorcycle manufactures of the period, some record setting bikes in the early 1910s, and V-Twin engine with automatic valves.
Sears Dreadnought was a motorcycle sold by Sears in the 1910s. The motorcycle featured a 70.62-cubic-inch (1,157.3 cm3) V-twin made by Spacke. It was sourced from Spacke's cyclecar and had 9 horsepower (6.7 kW). This engine was also used by Dayton, Eagle, Minneapolis and Crawford. In addition to the internal combustion engine, it also had foot-pedals like a regular bicycle.