Raleigh are perhaps best known as a bicycle manufacturer.
They started  manufacturing motorcycles as early as 1902 but stopped in 1905, commencing again in 1919. During the 1920s the Raleigh range expanded to include machines of a wide variety of capacities, both sidevalve and overhead-valve engined, ranging from a 175cc unit-construction lightweight to a hefty 998cc v-twin.

Raleigh motorcycles earned an enviable reputation for reliability and quality, reinforcing the public perception with successes in reliability trials.

In 1926 Raleigh employed Brooklands tuning wizard D. R. O'Donovan to get the most from its TT racers, a 7th in the 1931 Senior TT race was their best result.
Production of motorcycles ceased in 1933, but during the ‘60s they were again making small lightweight mopeds, this time up until the 1971.
Sturmey Archer was part of the Raleigh group producing motorcycle gearboxes and engines for many period British manufacturers including Brough, Dunelt, Coventry Eagle, to name but a few, and indeed for Raleigh themselves.