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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
Wippermann 7Z1 for general riding
http://www.chainreactioncycles.com/Models.aspx?PartnerID=79&ModelID=11287
Wippermann 7R8 if you're using 3/32" for track racing.