bicycle handlebar adaptability-Shimano Dura-Ace CS-7900 Ultegra CS-6700 10-Speed 11t 1st Position Cog "B Fit" 105 CS-5800

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Shimano Dura-Ace CS-7900 Ultegra CS-6700 10-Speed 11t 1st Position Cog "B Fit" for 105 CS-5800. Shimano Dura-Ace CS-7800 & Ultegra CS-6700 6600 10-Speed Cassette Cogs
  • 1.6mm cog thickness
    • TECH SPECS
    Tooth Count 11