The first seven of the following files provide amazingly detailed
information on Sturmey-Archer hubs, from
the earliest models to the present day. They have been compiled by
English engineer and hub gear
enthusiast Jim Gill. Although some of the material was originally
published by Sturmey-Archer, the
vast majority is Jim's own work and has never been published before.
Also provided is John Fairbrother's simpler approach to fixed-wheel
conversions. These require the acceptance of some lost motion in the
hub. John is an engineer and bicycle restorer based in Hampshire,
England. A different approach is provided in Graham Webster's
beautifully presented article on converting the SRAM 3-speed to 2-speed
fixed-wheel operation.
The Jim Gill and Graham Webster files are in Adobe Acrobat format (PDF version 1.3),
making them zoomable and easily printable, page at a
time. If you do not already have the Acrobat Reader viewer/plug-in
(version 4.0 or higher) for your browser, you can easily
download it free of charge via
this link.
Epicyclic Gears -
Some Theoretical Considerations
Engineer and hub gear enthusiast Jim Gill explains how various hub
gears work. Includes
zoomable diagrams.
21 pages, file size 654kb
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.
14 pages, file size 445kb
Sturmey-Archer Hubs
- Axle Charts
Zoomable dimensioned drawings of axles for Sturmey-Archer hubs.
26 pages, file size 1,219kb
Sturmey-Archer Hubs
- Cone Charts
Zoomable dimensioned drawings of cones for Sturmey-Archer hubs.
7 pages, file size 265kb
Sturmey-Archer
Hubs - Spring Charts
Zoomable dimensioned drawings of springs for Sturmey-Archer hubs.
5 pages, file size 148kb
Sturmey-Archer
Hubs - Triggers
Zoomable dimensioned drawings of triggers for Sturmey-Archer hubs.
Includes how to convert
triggers for use with fixed-wheel hubs.
5 pages, file size 443kb
Fixed Hubs
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. We used to give Jim's address and phone number here, but sadly, he
died in May 2010.
8 pages, file size 1067kb
Modifications to Sturmey-Archer hub gears
to produce fixed wheel gears
Engineer John Fairbrother outlines another approach to fixed-wheel
conversions.
1 page, 6kb
Modifications to Sturmey-Archer triggers for use with fixed wheel gears
More good stuff from Jim Gill.
2 pages, 1.62mb
How to convert an FW 4-speed
into a 5-speed
Two different methods are described in The Sturmey-Archer
Story. Follow the link above to find out more about this book
and how to purchase it.
