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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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@Platini
Remember Ordnance Survey maps? They were very popular and are, believe it or not, still widely available.
They have these ingenious little squiggly lines called 'contours'. Simply by looking at them and their relation to each other, not only can you figure out where you are, but also how high above sea level you are. They can also save your life when your electronic gizmo gives up the ghost...