Brompton Bicycle is a British manufacturer of folding bicycles based in Greenford, London. Production was previously in Brentford.
The Brompton folding bicycle and accessories are the company’s core product, noted for its self-supporting compact size when stored. All available models of the folding bicycle are based on the same hinged bicycle frame and 16 inch (37×349 mm) bicycle wheel tyre size. Components are added, removed, or replaced by titanium parts to form the many variations. The modular design has remained fundamentally unchanged since the original patent was filed by Andrew Ritchie in 1979, with small details being refined by continual improvement. Ritchie was awarded the 2009 Prince Philip Designers Prize for work on the bicycle. In reviews of folding bicycles, the Brompton is often the winner.
Brompton is the largest volume bicycle manufacturer in Britain, producing approximately 40,000 bicycles each year. The company also operates a Bicycle hire system.