Harley-Davidson models. In the late summer of 1929, Harley-Davidson introduced its 45 cubic inches (737 cm³) flathead V-Twin to compete with the Indian 101 Scout and the Excelsior Super X. This was the "D" model, produced from 1929 to 1931. Riders of Indian motorcycles derisively referred to this model as the "three cylinder Harley" because the generator was upright and parallel to the front cylinder. The Great Depression began a few months after the introduction of their 45 cubic inch (737 cm³) model. Harley-Davidson's sales fell from 21,000 in 1929 to 3,703 in 1933. Despite this, Harley-Davidson unveiled a new lineup
Harley-Davidson Super Glide mid 2014, and replaced the FXDC Super Glide Custom in the line up. Harley discontinued the Dyna platform in 2017 for the 2018 model year, having been replaced by a completely-redesigned Softail chassis; some of the existing models previously released by the company under the Dyna nameplate have since been carried over to the new Softail line. Harley-Davidson Super Glide The Harley-Davidson Super Glide was a motorcycle model made by the Harley-Davidson Motor Company. Reputed to be the first factory custom motorcycle, it originated Harley's FX series of motorcycles by mating Sportster components, most notably the front end, with the