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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
This summer I did a 36 km (moderately hilly) time trial @ 38.5km/h and 13km flat time trial @ 40.7km/h on my Seta with 50:16 gear ratio.
Aero helmet and disc helped me break the 40km/h barrier finally!
Picture credits: Touho Häkkinen