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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.
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@gbj_tester
If you have time to comparison shop for items costing under £5, you have time to do your own background reading, starting at
http://www.skf.com/portal/skf/home and
http://www.fag.de/content.fag.de/en/index.jsp