The Ner-A-Car was the most successful hub-center steering motorcycle ever produced, with sales far eclipsing earlier or later examples of this design, such as the Yamaha GTS1000 or Bimota Tesi.

Carl Neracher's design had several unusual features, including a low-slung perimeter frame chassis,[1][4][5][6] hub-center steering, all-enclosing bodywork, the feet-forward riding position, and a friction drive transmission,[1][7] driven by the flywheel of the engine.

[10] The Neracar resembled the Bi-Car in outline, which was "an attempt to construct a two-wheel vehicle embracing many desirable features of the automobile".

Eventually, a group of investors, including King C. Gillette and Crouse-Hinds Company founder Huntington B. Crouse, funded the Ner-A-Car Corporation, which began production of Neracars in October 1921.

The advertisers publicized the Ner-A-Car's step-through design and its protection from road grime and engine fluids, both of which allowed riders to wear ordinary clothes, including skirts, cassocks, and kilts, while riding the cycle.

[2] A de-luxe model was introduced in 1926 with swingarm rear suspension controlled by quarter-elliptic leaf springs, a bucket seat with air cushions, and a fairing with an adjustable Triplex windshield and an instrument panel.

The addition of rear suspension increased the wheelbase of the de-luxe model to 68.5 inches (1,740 mm)[2] Production of the Ner-A-Car at Sheffield-Simplex ended in the autumn of 1926.