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Detailed information and exploded diagrams for all Sturmey Archer parts can be found at Sturmey Archer - click here, Sturmey Archer Historical Hub Archive - click here or Tony Hadlands Pages - click here

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Questions & Answers (1)
Whats The Difference In Your 2 Products 19079 And 19080
10 Nov 2014
I cant see any details on the website differentiating these. Thanks.
SJS Customer Service:

The reason there are not any specifications for either of these listed is they are direct replacements for specific Sturmey Archer hubs and the part numbers (HMN132/HMN137) correspond to the exploded diagram for whichever hub they were designed for. If you're just looking for a generic lock nut the 19079 part is a 3/8" (9.5mm) thread and the 19080 is a standard 10mm thread and they are both 3mm in thickness.