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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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Glws
@Super_653
https://www.chainreactioncycles.com/fsa-k-force-seatpost/rp-prod76770
First saw this on the old Cannondale team bikes (Sagan's etc), and have loved it since. Have used with no issues, and I'm heavy. Nice bit of kit.