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Williams component dating

Posted: Friday 12th June 2020

Author: Steve Griffith

Many of Williams components are stamped with a letter code which denotes the year of manufacture as listed below. In the table the year is followed by the letter code. This can help to identify the date of a machine if you are confident that it is original equipment.  Sturmey Archer of course also date stamped many of their hubs.

To identify your chainset see A guide to Williams crank and chainring identification by Steve Griffith

1912/13-A14-B15-C16-D17-E18/19-E20-F
21-G22-H23-I24-J25-K26-L27-M
28-N29-O30-P31-S32-T33-U34-W
35-X36-Y37-Z38-AA39-AB40-AC41-AD
42-AE43-AF44-AG45-AH46-AI47-AJ48-AK
49-AL50-AM51-AN52-AP53-AS54-AT55-AU
56-AW57-AX58-AY59-AZ60-ZA61-ZB62-ZC
63-ZD64-ZE65-ZF66-ZG67-ZH68-ZI69-ZJ
70-ZK71-ZL72-ZM73-ZN74-ZP75-ZS76-ZT
77-ZU78-ZW79-ZX1980-ZY
Thanks for reading

Posted: Friday 12th June 2020

Author: Steve Griffith

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