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London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
@Samuli
https://www.youtube.com/watch?v=d85QKyWvrbI
http://orthoinfo.aaos.org/topic.cfm?topic=A00005
http://orthoinfo.aaos.org/topic.cfm?topic=a00069