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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.
@provenrad
http://www.sjscycles.co.uk/src/lfgss/product-Shimano-Shimano-UN53-4-70-mm-Shell-Italian-Thread-Sealed-Cartridge-Square-Taper-Bottom-Bracket-12988.htm