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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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@El_Diablo
2 x 12 up close ratio screw on 7 speed blocks (or cassettes if you wish, although they're not truly cassettes)
Ideal for triple chainsets - one tooth difference cog changing to keep the cadence at optimim pace.
Anyone interested? Can trade for summat useful. Could sell for £10 each, maybe do a deal
Pm if interested- I just want rid!