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An employee installs an inner tube to a cycle rear wheel inside the Brompton Bicycle Ltd. factory in London, U.K., on Friday, May 13, 2016. The Brompton was created in 1975 by Andrew Ritchie, a Cambridge-trained engineer. Photographer: Simon Dawson/Bloomberg via Getty Images

An employee installs an inner tube to a cycle rear wheel inside the Brompton Bicycle Ltd. factory in London, U.K., on Friday, May 13, 2016. The Brompton was created in 1975 by Andrew Ritchie, a Cambridge-trained engineer. Photographer: Simon Dawson/Bloomberg via Getty Images