In general, the quality reached its peak in the 1950s, and quality started to go down around the early 1960's, as management kept searching for ways to make the bicycles cheaper.This table is focussed on the mainline Raleigh/Rudge/Humber "Sports" model.That is not what a Raleigh Sports was about...these were designed to provide solid, dependable transportation for the British public, at a time when only the upper classes had motorcars.These bikes were built to last 100 years, with reasonable care.
When a modern company sets out to build a bicycle, what they really build is the frame (if that.) They buy sets of tubing from a tubing company, cut and weld them together into a frame, paint it and install parts which they buy different specialized parts companies.hub (c1903-1990s), it should have on the hub a date of manufacture, which would normally also be the cycle's date of manufacture. "6" for "1936." After that, they started using two-digit date stamps.If you are not sure the rear wheel on your bike is original, the charts below should help you determine the approximate date of manufacture.A Raleigh bicycle of this era would have a Raleigh frame, made of Raleigh Tubing conected with Raleigh lugs, with a Raleigh bottom bracket, Raleigh cranks, Raleigh pedals, Raleigh headset, Raleigh handlebars, Raleigh stem, Raleigh seatpost, Raleigh hubs (Sturmey-Archer was a Raleigh subsidiary) and even Raleigh spokes.All of these parts would have been made in the same factory.