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  • Shimano BB7700 Dura-Ace bottom bracket - Nsnoe
  • Shimano BB7700 Dura-Ace bottom bracket - Nsnoe
  • Shimano BB7700 Dura-Ace bottom bracket - Nsnoe

Shimano BB7700 Dura-Ace bottom bracket

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  • Detail
    • Precision engineered Dura-Ace 7700 bottom bracket for road Octalink splined system
    • 22 mm diameter chrome-moly hollow pipe billet axle reduces weight
    • Splined interface provides a more rigid crank assembly compared to tapered counterparts
    • Compound bearing structure - ball and needle bearings support the spindle to reduce flex
    • Maintenance-free sealed cartridge design prevents corrosion and is easy to install
    • Average weight 173 g
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