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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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@JB
A Geekhouse Mudville with http://www.bikerumor.com/2013/06/30/shimano-unveils-hydraulic-road-discs-with-r785-di2-system-and-11-speed-ultegra-di2/
Edit: A Geekhouse Mudville with SRAM Force and TRP Hy/Rd.