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| Acknowledgements | ||
| Many thanks to: | ||
| Tom Ace | ||
| Sheldon Brown | ||
| Harriet Fell | ||
| Jim Gill | ||
| Tony Hadland | ||
| Jens Hansen | ||
| John Harris | ||
| Crispin Miller | ||
| Adam Rankin | ||
| Konstantin Shemyak | ||
| Shimano | ||
| SRAM | ||
| Sturmey-Archer and the Sturmey-Archer Heritage Web site | ||
| Howard Sutherland | ||
| A footnote to the header cell of each page of calculations gives the source of information. | ||
| Back to the Table of Contents | ||