The object
Andrew Ritchie invented the Brompton folding bicycle around a compact, secure folding mechanism suited to carrying on trains and storing in small spaces. The physical design became an enduring urban-mobility product, making mixed bicycle-and-transit travel practical for commuters around the world.
01
What Andrew did
Invented the Brompton bicycle's compact folding mechanism and produced its first working bicycles.
02
Why it matters
Brompton's 50th-anniversary coverage reports more than 80,000 Bromptons on London's roads and treats the original folding mechanism as the brand's defining innovation.
03
Living-status check
Country Life's dated November 2025 Brompton anniversary report quotes contemporaries describing Ritchie as the bike's inventor, positive evidence he was alive in 2025.