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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.
@hippy
Here's how a car system works: http://www.trackstar.co.uk/vehicle-tracking-explained-trackstar.aspx
http://www.mymobileguardian.com/
http://www.auto-txt.com/info.php