The 6700 hubs will be better sealed from water/dirt/life. And the freehub body will be more resistant to notching.
@miro_o started
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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The 6700 hubs will be better sealed from water/dirt/life. And the freehub body will be more resistant to notching.