1974 - 1980's
In 1974, an entirely different numbering system was introduced for the higher end (531 and subsequently 753) Raleighs. Serial numbers should begin with a "W", which stands for Worksop, the facility that produced theses frames. This is followed by another alphabet. This alphabet indicates the fortnight in which the frame was built (i.e. A = 1st fortnight, B = 2nd, etc.). The third character is always a numeral. It indicates the year of manufacture, the decade being assumed (i.e. "4" could be '74 or '84; it is up to the interpretor to know enough to tell if the frame is from the 70's or 80's). What then follows is a series of numbers. At this point, these appear to be some sort of sequence, but this has not been substantiated.
Playford, you are not entirely correct bro,
W was a frame serial prefix also used by Raleigh at their Nottingham plant for"Lightweight Unit"frames and bicycles, after Raleigh closed
the Worksop (Carlton) factory in 1980.
Frame is a bit of a conundrum as it has a mix of"features", e.g early type top tube brake cable route, v.late style Reynolds tubing stickers; and the fork crown...my instinct says late Worksop built Raleigh, but then I look at the headtube badge (which is 80s - my 84 LU Corsa has the same style headbadge - when was it introduced?), over time has this frame acquired a mix of features? I'm pretty confident the tubing stickers are later than the frame.
Is there a riveted on plastic cable guide under the bottom bracket? Thanks to Ned you should know what that is (the"BB"that is).
Raleighs built in 753 had completely different frame numbers.
Mafacs are well underrated brakes...Anquetil won Tours with these (I've just bought some NoS ones). Stem is a GB"spearpoint"available from the early 1950s. Hinduminium is just the name given by Reynolds to their alloy product.
Butted and plain guage tubes - butted tubes (in laymans terms) are thicker at the ends, and thinner in the mid section. Plain guage = one thickness.
Nice to see someone knows how to use a dialguage!
More later - if you want.
Co-founder of a V-CC section, member South Eastern Road Club and owner of - 2005 Bianchi Reparto Corse (modern), 1985 Raleigh SBDU Pro Super, 1984 Raleigh LU Corsa, 1980 Allin Stan Butler Special, 1978 Ron Cooper, 2 x very early Roberts (late 60s/early 70s), 1975 Bill Philbrook tourer, 1966 Raleigh Superbe Roadster, 1964 Allin Stan Butler Special Belgique, 1951 Hobbs of Barbican S/C, 1950 Hobbs of Barbican S/C, 1947 Hetchins Super Special, 1908 Centaur Featherweight. 1988 Specialized Stumpjumper.