The first seven of the following files provide amazingly detailed information on Sturmey-Archer hubs, from the earliest models to the present day. They were compiled by English engineer and hub gear enthusiast, the late Jim Gill. Although some of the material was originally published by Sturmey-Archer, the vast majority is Jim’s own work and was first published here.
Also provided is the late John Fairbrother’s simpler approach to fixed-wheel conversions. John was an engineer and bicycle restorer based in Hampshire, England.
Newly added in summer 2021 are various useful and interesting technical papers by eminent hub gear specialist David White. Information from David on type A and FN axles has also been added to the axle charts.
The files are in PDF format, making them zoomable and easily printable. Please note that where a drawing is said to be “actual size”, this only applies to the original hard copy. The size you see will depend on your screen size, the PDF zoom setting you use or your printer settings.
Epicyclic Gears – some theoretical considerations
Engineer and hub gear enthusiast Jim Gill explains how various hub gears work. Includes zoomable diagrams.
Sturmey-Archer Hubs – reference tables
Zoomable dimensioned drawings and tables of pawls, drivers, axle keys, pinion pins, gear teeth, ballcups, hub shell dimensions, indicators and more.
Sturmey-Archer axle charts
Zoomable dimensioned drawings of axles for Sturmey-Archer hubs. At the end of this article is information from David White on the type A and FN axles, added in summer 2021.
Sturmey-Archer Hubs – cone charts
Zoomable dimensioned drawings of cones for Sturmey-Archer hubs.
Sturmey-Archer Hubs – spring charts
Zoomable dimensioned drawings of springs for Sturmey-Archer hubs.
Sturmey-Archer Hubs – triggers
Zoomable dimensioned drawings of triggers for Sturmey-Archer hubs. Includes how to convert triggers for use with fixed-wheel hubs.
Jim Gill’s fixed hub conversions
Jim Gill’s compilation of how to convert a 3-speed to 2-speed fixed-wheel and how to convert 4-speeds to 3-speed fixed.
Jim Fairbrother’s fixed hub conversions
Modifications to Sturmey-Archer hub gears to produce fixed wheel gears
Engineer John Fairbrother outlines another approach to fixed-wheel conversions.
Fixed hub trigger conversion
Modifications to Sturmey-Archer triggers for use with fixed wheel gears
More good stuff from Jim Gill.
Variations in Sturmey-Archer K hub drivers and right-hand ball cups
The first of a series of illustrated articles by eminent Sturmey-Archer enthusiast David White.
Early K-type right-hand ball cup
Photos and comment by David White.
Ratchet plates for Sturmey-Archer triggers
David White adds to information from the late Jim Gill.
Making a replacement indicator for a Sturmey-Archer ASC 3-speed fixed hub
Referring to Jim Gill’s indicator sheet, David White shows how to make a replacement for this rare component.
How to make a replacement indicator coupling for AM, AR or AC hubs
David White shows how to make a replacement indicator coupling for these three hubs with through axle bore.
Keeper for Sturmey-Archer Dynohub magnets
David White provides all the dimensions you need to make your own keeper. No good for zoos or brothers but works a treat with Dynohubs.
Sturmey-Archer shell sizes 1930s to 1970s (and perhaps longer)
David White’s annotated drawing with the key dimensions.
Clamping tool for holding Sturmey-Archer hub shells
Don’t squash your hub – build yourself a proper clamping tool by using David White’s illustrated instructions.
The Sturmey-Archer ‘wavy’ emblem on hubs
David White investigates the evolution and variations of this classic logo.
Variations in pre-WW2 AW hub logos and stampings
Detailed research by David White into the stampings and logos on early AW 3-speed hubs.