John James Henry Sturmey (1857–1930), known as Henry Sturmey, is best remembered as the inventor with James Archer of the Sturmey-Archer three-speed hub for bicycles, but he was a technical editor and journalist heavily involved as a pioneer of the cycling and automotive industries. Born at Norton-sub-Hamdon, Somerset, on 28 February 1857 he died aged 72 at his home in Coventry on 8 January 1930.
Cross-sectional diagram of the Sturmey-Archer three-speed hub
Sturmey-Archer was a manufacturing company originally from Nottingham, England. It primarily produced bicycle hub gears, brakes and a great many other sundry bicycle components, most prominently during its heyday as a subsidiary of the Raleigh Bicycle Company. In the past, it also manufactured motorcycle hubs, gearboxes and engines.
A Sturmey-Archer three speed hub, the most common kind of Sturmey-Archer gear
An exploded Sturmey-Archer AW
The internals of a Sturmey-Archer FM four-speed, medium ratio, hub gear. It has substantially more components than an AW 3 speed. FC, AF, AC, and ASC hubs are similar.
Sturmey-Archer X-FD front hub brake